I'm not sure that a lot of expansion is needed. A list of common equipment, if you want -- although I won't be a price list in my games -- mundane stuff the players will just "have" automatically as part of their adventuring kit. I might have said otherwise in the past, but I've changed my mind.
I think having different versions (M74, M75) is silly. Just make the M20 variant that you want to use at your table.
I'm not sure I'd appreciate a random dungeon page. I'd rather have a few dungeons from
this awesome thread.
