Just in case Cory changes his mind about the Giant-Sizes, here's my alternative map.

Marvel Masterworks: Amazing Spider-Man Vol. 13
The Amazing Spider-Man Nos. 121-133
Gerry Conway, Gil Kane,
Ross Andru & John Romita

272 pp.

Front cover: ASM 122
Back cover: ASM 121, 123-130

Writer: Gerry Conway

Pencilers:
Gil Kane (Nos. 121-124)
Ross Andru (Nos. 125-131, 133)
John Romita (Nos. 123, 132)

Inkers:
John Romita (Nos. 121-125)
Tony Mortellaro (Nos. 121-125, 132)
Jim Mooney (No. 126)
Frank Giacoia (Nos. 127-131, 133)
Dave Hunt (Nos. 127-131, 133)
Paul Reinman (No. 132)

Letterers:
Art Simek
Tom Orzechowski (No. 127)
John Costanza (Nos. 128, 129)

Colorists:
Andy Yanchus (Nos. 121, 122)
Dave Hunt (No. 123-125, 129)
Linda Lessmann (No. 126)
Glynis Wein (No. 127)
M. Brand (No. 128)
Petra Goldberg (Nos. 130-133)

Editor: Roy Thomas

Highlights:
* The death of Gwen Stacy
* 1st appearances of the Punisher, Man-Wolf and the Jackal
* Spidey vs. Luke Cage

i: Title page
ii: Indicia
iii: Credits
iv: Illustration (ASM 121 pg. 20)
v: Table of Contents
vi, vii: Foreword by Gerry Conway (background image: ASM 122, pg. 7, panel 1)
viii: ASM 121 cover
1-20: ASM 121 pp. 1-20
21: Spider-insignia (interstitial page)
22-42: ASM 122 cover & pp. 1-20
43: Spider-insignia (interstitial page)
44-63: ASM 123 cover & pp. 1-19
64-83: ASM 124 cover & pp. 1-19
84-103: ASM 125 cover & pp. 1-19
104-123: ASM 126 cover & pp. 1-19
124-143: ASM 127 cover & pp. 1-19
144-163: ASM 128 cover & pp. 1-19
164-183: ASM 129 cover & pp. 1-19
184-203: ASM 130 cover & pp. 1-19
204-223: ASM 131 cover & pp. 1-19
224-243: ASM 132 cover & pp. 1-19
244-262: ASM 133 cover & pp. 1-18
263: Extra: Annual 9 cover (1973; edited reprint of Spectacular Spider-Man Magazine 2)
264: Bios of Gerry Conway, Gil Kane, Ross Andru and John Romita


Marvel Masterworks: The Amazing Spider-Man Vol. 14
The Amazing Spider-Man Nos. 134-140,
Giant-Size Super-Heroes No. 1
& Giant-Size Spider Man Nos. 1-3
Gerry Conway & Ross Andru

264 pp.

Front cover: ASM 136
Back cover: Giant-Size Super-Heroes 1, Giant-Size Spider-Man 1, ASM 134, 135, Giant-Size Spider-Man 2, ASM 137-140

Writers:
Gerry Conway
Len Wein (Giant-Size Spider-Man Nos. 1, 2)

Pencilers:
Ross Andru
Gil Kane (Giant-Size Super-Heroes No. 1)

Inkers:
Frank Giacoia (Nos. 134-140)
Dave Hunt (Nos. 134, 136-140)
Mike Esposito (Giant-Size Super-Heroes No. 1, Giant-Size Spider-Man No. 3)
Don Heck (Giant-Size Spider-Man No. 1)
Al Milgrom (Giant-Size Spider-Man No. 2)

Letterers:
Art Simek
Annette Kawecki (No. 138)
John Costanza (Giant-Size Super-Heroes No. 1, Giant-Size Spider-Man Nos. 1, 2)
Ray Holloway (Giant-Size Spider-Man No. 3)

Colorists:
Linda Lessmann (Nos. 134-136, Giant-Size Super-Heroes No. 1)
Petra Goldberg (Nos. 137, 138, 140)
Jan Brunner (No. 139)
Glynis Wein (Giant-Size Spider-Man Nos. 1, 2)
George Roussos (Giant-Size Spider-Man No. 3)

Editor: Roy Thomas

Highlights:
* The wedding of Doc Ock and Aunt May
* The Spider-Mobile
* Harry Osborn becomes the new Green Goblin
* Team-ups with Dracula, Shang-Chi and Doc Savage
* Morbius and Man-Wolf team-up against Spidey

i: Title page
ii: Indicia
iii: Credits
iv: Table of Contents
v: Foreword by Gerry Conway (background image: ASM 135 cover)
vi: Giant-Size Super-Heroes 1 cover
1-24: Giant-Size Super-Heroes 1 pp. 1-24
25: Spider-insignia (interstitial page)
26-56: Giant-Size Spider-Man 1 cover & pp. 1-30
57: Spider-insignia (interstitial page)
58-76: ASM 134 cover & pp. 1-18
77: Spider-insignia (interstitial page)
78-96: ASM 135 cover & pp. 1-18
97: Spider-insignia (interstitial page)
98-128: Giant-Size Spider-Man 2 cover & pp. 1-30
129-147: ASM 136 cover & pp. 1-18 (double-page spread, pp. 114 & 115)
148-165: ASM 137 cover & pp. 1-17
166-183: ASM 138 cover & pp. 1-17
184: Spider-insignia (interstitial page)
185-203: ASM 139 cover & pp. 1-18 (double-page spread, pp. 172 & 173)
204-222: ASM 140 cover & pp. 1-18
223: Spider-insignia (interstitial page)
224-257: Giant-Size 3 cover & pp. 1-33
258: Bios of Gerry Conway, Len Wein, Ross Andru and Gil Kane


Marvel Masterworks: The Amazing Spider-Man Vol. 14
The Amazing Spider-Man Nos. 134-140,
Giant-Size Super-Heroes No. 1
& Giant-Size Spider Man Nos. 1-2
Gerry Conway & Ross Andru

256 pp.

Front cover: ASM 136
Back cover: Giant-Size Super-Heroes 1, Giant-Size Spider-Man 1, ASM 134, 135, Giant-Size Spider-Man 2, ASM 137-140

Writers:
Gerry Conway
Len Wein (Giant-Size Spider-Man Nos. 1, 2)

Pencilers:
Ross Andru
Gil Kane (Giant-Size Super-Heroes No. 1)

Inkers:
Frank Giacoia (Nos. 134-140)
Dave Hunt (Nos. 134, 136-140)
Mike Esposito (Giant-Size Super-Heroes No. 1)
Don Heck (Giant-Size Spider-Man No. 1)
Al Milgrom (Giant-Size Spider-Man No. 2)

Letterers:
Art Simek
Annette Kawecki (No. 138)
John Costanza (Giant-Size Super-Heroes No. 1, Giant-Size Spider-Man Nos. 1, 2)

Colorists:
Linda Lessmann (Nos. 134-136, Giant-Size Super-Heroes No. 1)
Petra Goldberg (Nos. 137, 138, 140)
Jan Brunner (No. 139)
Glynis Wein (Giant-Size Spider-Man Nos. 1, 2)

Editor: Roy Thomas

Highlights:
* The wedding of Doc Ock and Aunt May
* The Spider-Mobile
* Harry Osborn becomes the new Green Goblin
* Team-ups with Dracula and Shang-Chi, Master of Kung Fu
* Morbius and Man-Wolf team-up against Spidey

i: Title page
ii: Indicia
iii: Credits
iv: Illustration (Giant-Size Spider-Man 1 cover)
v: Table of Contents
vi, vii: Foreword by Gerry Conway (background image: ASM 135 cover)
viii: Giant-Size Super-Heroes 1 cover
1-24: Giant-Size Super-Heroes 1 pp. 1-24
25: Spider-insignia (interstitial page)
26-56: Giant-Size Spider-Man 1 cover & pp. 1-30
57: Spider-insignia (interstitial page)
58-76: ASM 134 cover & pp. 1-18
77: Spider-insignia (interstitial page)
78-96: ASM 135 cover & pp. 1-18
97: Spider-insignia (interstitial page)
98-128: Giant-Size Spider-Man 2 cover & pp. 1-30
129-147: ASM 136 cover & pp. 1-18 (double-page spread, pp. 114 & 115)
148-165: ASM 137 cover & pp. 1-17
166-183: ASM 138 cover & pp. 1-17
184: Spider-insignia (interstitial page)
185-203: ASM 139 cover & pp. 1-18 (double-page spread, pp. 172 & 173)
204-222: ASM 140 cover & pp. 1-18
223: Bonus story title/credits page
224-244: Amazing Spider-Man Power Records Comic PR24 cover & pp. 1-20
245-247: Extras
248: Bios of Gerry Conway, Len Wein, Ross Andru and Gil Kane



Marvel Masterworks: The Amazing Spider-Man Vol. 15
The Amazing Spider-Man Nos. 141-149
& Giant-Size Spider-Man Nos. 4-5
Gerry Conway & Ross Andru

248 pp.

Front cover: ASM 149
Back cover: ASM 141, 142, Giant-Size 4, 143-148

Writer: Gerry Conway
Penciler: Ross Andru

Inkers:
Frank Giacoia (Nos. 141-145)
Dave Hunt (Nos. 141-145, 147, 148)
Mike Esposito (Nos. 147-149, Giant-Size Nos. 4, 5)
John Ronita (No. 146)

Letterers:
Art Simek (Nos. 141, 143, 145, Giant-Size No. 5)
Joe Rosen (Nos. 142, 146, 147, Giant-Size No. 4)
Ray Holloway (No. 144)
Annette Kawecki (No. 149)

Colorists:
Petra Goldberg (Nos. 141, 145, 148, Giant-Size No. 5)
Linda Lessmann (No. 142)
Janice Cohen (Nos. 143, 149)
George Roussos (No. 144)
Don Warfield (No. 146)
Stan Goldberg (No. 147, Giant-Size No. 4)

Editors:
Roy Thomas (No. 141)
Len Wein (Nos. 142-148, Giant-Size Nos. 4, 5)
Marv Wolfman (Nos. 149)

Highlights:
* The original Spider-Clone Saga
* Team-ups with Man-Thing and the Punisher

i: Title page
ii: Indicia
iii: Credits
iv: Illustration (Spider-Mobile from ASM 141, pg. 1)
v: Table of Contents
vi, vii: Foreword by Gerry Conway (background image: ASM 143, pg. 9, panels 5-7)
viii: ASM 141 cover
1-17: ASM 141 pp. 1-17
18-36: ASM 142 cover & pp. 1-18
37: Spider-insignia (interstitial page)
38-65: Giant-Size 4 cover & pp. 1-27
66-84: ASM 143 cover & pp. 1-18
85: Spider-insignia (interstitial page)
86-104: ASM 144 cover & pp. 1-18
105: Spider-insignia (interstitial page)
106-124: ASM 145 cover & pp. 1-18
125: Spider-insignia (interstitial page)
126-144: ASM 146 cover & pp. 1-18
145: Spider-insignia (interstitial page)
146-176: Giant-Size 5 cover & pp. 1-30
177: Spider-insignia (interstitial page)
178-196: ASM 147 cover & pp. 1-18
197: Spider-insignia (interstitial page)
198-216: ASM 148 cover & pp. 1-18
217: Spider-insignia (interstitial page)
218-236: ASM 149 cover & pp. 1-18
237: Extra: Giant-Size 6 cover (Giant-Size 6 reprinted Annual 4)
238, 239: More extras
240: Bios of Gerry Conway and Ross Andru


Marvel Masterworks: The Amazing Spider-Man Vol. 16
The Amazing Spider-Man Nos. 150-160
& Annual No. 10
Len Wein, Ross Andru & Gil Kane

256 pp.

Front cover: ASM 151
Back cover: ASM 150, 152-159

Writers:
Len Wein
Archie Goodwin (No. 150)
Bill Mantlo (Annual No. 10)

Pencilers:
Ross Andru
Gil Kane (No. 150, Annual No. 10)
Sal Buscema (Nos. 154, 155)

Inkers:
Mike Esposito
Frank Giacoia (Nos. 150, 152, Annual No. 10)
John Romita (No. 151)

Letterers:
John Costanza
Joe Rosen (Nos. 150, 160)
Irving Watanabe (No. 155)
Gaspar Saladino (No. 156)

Colorists:
Glynis Wein
Petra Goldberg (No. 150, Annual No. 10)

Editors:
Len Wein
Marv Wolfman (No. 150)

Highlights:
* The wedding of Betty Brant and Ned Leeds
* Doc Ock vs. Hammerhead, the rematch
* Death of the Spider-Mobile

i: Title page
ii: Indicia
iii: Credits
iv: Illustration (ASM 150 cover)
v: Table of Contents
vi, vii: Foreword by Len Wein (background image: ASM 152 pg. 16, panel 1)
viii: ASM 150 cover
1-18: ASM 150 pp. 1-18
19: Spider-insignia (interstitial page)
20-38: ASM 151 cover & pp. 1-18
39: Spider-insignia (interstitial page)
40-58: ASM 152 cover & pp. 1-18
59: Spider-insignia (interstitial page)
60-78: ASM 153 cover & pp. 1-18
79: Spider-insignia (interstitial page)
80-97: ASM 154 cover & pp. 1-17
98-115: ASM 155 cover & pp. 1-17
116-134: ASM 156 cover & pp. 1-18
135: Spider-insignia (interstitial page)
136-153: ASM 157 cover & pp. 1-17
154-171: ASM 158 cover & pp. 1-17
172-189: ASM 159 cover & pp. 1-17
190-225: ASM Annual 10 cover & pp. 1-35
226-243: ASM 160 cover & pp. 1-17
244-247: Extras
248: Bios of Len Wein, Archie Goodwin, Bill Mantlo, Ross Andru, Gil Kane and Sal Buscema


Marvel Masterworks: The Amazing Spider-Man Vol. 17
The Amazing Spider-Man Nos. 161-171,
Annual No. 11 & Nova No. 12
Len Wein & Ross Andru

264 pp.

Front cover: ASM 161
Back cover: ASM 162-169, Nova 12

Writers:
Len Wein
Marv Wolfman (Nova No. 12)
Bill Mantlo (Annual No. 11)
Archie Goodwin (Annual No. 11)
Scott Edelman (Annual No. 11)

Pencilers:
Ross Andru
Sal Buscema (Nova No. 12)
Don Perlin (Annual No. 11)
John Romita, Jr. (Annual No. 11)

Inkers:
Mike Esposito
Frank Giacoia (No. 170, Nova No. 12)
Jim Mooney (Annual No. 11)
Al Milgrom (Annual No. 11)

Letterers:
Joe Rosen
Irving Watanabe (Nos. 161, 169)
John Costanza (Nos. 162, 164)
Bruce Patterson (Annual No. 11)

Colorists:
Glynis Wein
Don Warfield (Annual No. 11)
Nel Yomtov (Annual No. 11)

Editors:
Len Wein
Marv Wolfman (Nova No. 12)
Archie Goodwin (Annual No. 11)

Highlights:
* Spidey and Nightcrawler vs. the Punisher
* Spider-Man/Nova cross-over
* Return of the Kingpin, the Lizard, Doctor Faustus and the Spider-Slayer
* Debuts of Will-O'-the-Wisp and Stegron

i: Title page
ii: Indicia
iii: Credits
iv: Illustration (ASM 169 cover)
v: Table of Contents
vi, vii: Foreword by Len Wein (background image: ASM 166 pg. 14, panel 3)
viii: ASM 161 cover
1-17: ASM 161 pp. 1-17
18-36: ASM 162 cover & pp. 1-18
37: Spider-insignia (interstitial page)
38-55: ASM 163 cover & pp. 1-17
56-73: ASM 164 cover & pp. 1-17
74-91: ASM 165 cover & pp. 1-17
92-110: ASM 166 cover & pp. 1-18
111: Spider-insignia (interstitial page)
112-129: ASM 167 cover & pp. 1-17
130-147: ASM 168 cover & pp. 1-17
148-165: ASM 169 cover & pp. 1-17
166-183: ASM 170 cover & pp. 1-17
184-201: Nova 12 cover & pp. 1-17
202-219: ASM 171 cover & pp. 1-17
220-254: Annual 11 cover & pp. 1-34
255, 256: Bios of Len Wein, Ross Andru, Marv Wolfman, Bill Mantlo, Archie Goodwin, Scott Edelman, Sal Buscema, Don Perlin and John Romita, Jr.


Marvel Masterworks: The Amazing Spider-Man Vol. 18
The Amazing Spider-Man Nos. 172-185
Len Wein, Marv Wolfman & Ross Andru

264 pp.

Front cover: ASM 185
Back cover: ASM 172-180

Writers:
Len Wein (Nos. 172-180)
Marv Wolfman (Nos. 182-185)
Bill Mantlo (No. 181)

Pencilers:
Ross Andru
Sal Buscema (No. 181)

Inkers:
Frank Giacoia (Nos. 172, 184)
Jim Mooney (Nos. 173-175, 178, 180)
Tony DeZuniga (Nos. 174, 176)
Mike Esposito (Nos. 177, 179, 181, 182, 185)
Bob McLeod (No. 183)

Letterers:
Joe Rosen (Nos. 172-176, 178, 180)
John Costanza (Nos. 177, 179, 182, 184)
Annette Kawecki (No. 181, 185)
Jim Novak (No. 183)

Colorists:
Glynis Wein
Janice Cohen (No. 183)
Nel Yomtov (No. 185)

Editors:
Len Wein (Nos. 172-180)
Marv Wolfman (Nos. 181-185)

Highlights:
* Return of the Green Goblin
* A team-up with the Punisher

i: Title page
ii: Indicia
iii: Credits
iv: Illustration (ASM 180 pg. 18)
v: Table of Contents
vi, vii: Foreword by Len Wein (background image: ASM 176 pg. 1)
viii: ASM 172 cover
1-17: ASM 172 pp. 1-17
18-35: ASM 173 cover & pp. 1-17
36-53: ASM 174 cover & pp. 1-17
54-71: ASM 175 cover & pp. 1-17
72-89: ASM 176 cover & pp. 1-17
90-107: ASM 177 cover & pp. 1-17
108-125: ASM 178 cover & pp. 1-17
126-143: ASM 179 cover & pp. 1-17
144-162: ASM 180 cover & pp. 1-18
163: Spider-insignia (interstitial page)
164-181: ASM 181 cover & pp. 1-17
182-199: ASM 182 cover & pp. 1-17
200-217: ASM 183 cover & pp. 1-17
218-235: ASM 184 cover & pp. 1-17
236-254: ASM 185 cover & pp. 1-18
255: Extra: Annual 12 cover (reprinted ASM 119 & 120 w. new John Byrne cover)
256: Bios of Len Wein, Marv Wolfman, Ross Andru, Bill Mantlo and Sal Buscema


Marvel Masterworks: The Amazing Spider-Man Vol. 19
The Amazing Spider-Man Nos. 186-200
Marv Wolfman & Keith Pollard

312 pp.

Front cover: ASM 200
Back cover: ASM 187-190, 194, 196-199

i: Title page
ii: Indicia
iii: Credits
iv: Illustration
v: Table of Contents
vi, vii: Foreword by Marv Wolfman
viii: ASM 186 cover
1-18: ASM 186 pp. 1-18
19: Spider-insignia (interstitial page)
20-38: ASM 187 cover & pp. 1-18
39: Spider-insignia (interstitial page)
40-57: ASM 188 cover & pp. 1-17
58-75: ASM 189 cover & pp. 1-17
76-93: ASM 190 cover & pp. 1-17
94-111: ASM 191 cover & pp. 1-17
112-130: ASM 192 cover & pp. 1-18
131: Spider-insignia (interstitial page)
132-149: ASM 193 cover & pp. 1-17
150-167: ASM 194 cover & pp. 1-17
168-186: ASM 195 cover & pp. 1-18
187: Spider-insignia (interstitial page)
188-205: ASM 196 cover & pp. 1-17
206-224: ASM 197 cover & pp. 1-18
225: Spider-insignia (interstitial page)
226-243: ASM 198 cover & pp. 1-17
244-261: ASM 199 cover & pp. 1-17
262-298: ASM 200 cover & pp. 1-36
299: Extra: Dave Cockrum's character design for the Black Cat (source: ASM #194)
300: Extra: Keith Pollard's rejected cover for ASM #194 (source: ASM #194)
301-303: More extras
304: Bios of Marv Wolfman, Keith Pollard, Jim Starlin, John Byrne, Al Milgrom and Sal Buscema


Marvel Masterworks: The Amazing Spider-Man Vol. 20
The Amazing Spider-Man
Nos. 201-209, Annual Nos. 13-14
& The Spectacular Spider-Man Annual No. 1
Marv Wolfman, Denny O'Neil, Keith Pollard,
John Byrne & Frank Miller

288 pp.

Front cover: ASM 201
Back cover: ASM Annual 13, ASM 202-204, 206-209, ASM Annual 14

i: Title page
ii: Indicia
iii: Credits
iv: Illustration
v: Table of Contents
vi, vii: Foreword by Denny O'Neil
viii: ASM Annual 13 cover
1-35: ASM Annual 13 pp. 1-35
36-71: Spectacular Spider-Man Annual 1 cover & pp. 1-35
72-89: ASM 201 cover & pp. 1-17
90-107: ASM 202 cover & pp. 1-17
108-126: ASM 203 cover & pp. 1-18
127: Spider-insignia (interstitial page)
128-145: ASM 204 cover & pp. 1-17
146-164: ASM 205 cover & pp. 1-18
165: Spider-insignia (interstitial page)
166-183: ASM 206 cover & pp. 1-17
184-201: ASM 207 cover & pp. 1-17
202-219: ASM 208 cover & pp. 1-17
220-237: ASM 209 cover & pp. 1-17
238-278: ASM Annual 14 cover & pp. 1-40
279, 280: Bios of Marv Wolfman, Denny O'Neil, Bill Mantlo, Roger Stern, Keith Pollard, John Byrne, Rich Buckler, Jim Mooney, John Romita Jr., Alan Weiss & Frank Miller