Great mock-ups, Urban, as usual. If the Giant-Sizes aren't going to be included, it makes sense to go with Dum Dum's original plan, and have Vol. 13 reprint 121-131. In that version, Romita only pencils one issue, 123, so you probably don't need his name on the marquee.

I picked 136 for Vol. 14 because my version doesn't have 141. If 141 is in Vol. 14, I'd pick it for the cover. Once again, I wouldn't bother with putting Romita on the marquee, since he only pencils one issue, 132.