--- we hadn't received ANY offers for help in the past (aside from Dantarion... but that broke off... although there is a slim chance of it happening again...)
.. i did lol (doesnt matter anyway

we're still cool)
Anyway, the 3d model thing is EXTREMELY unfeasible because what program can you possibly embed into a webpage and have it work flawlessly? its not going to happen
BUT there could be one way, but i am not the right person to help with it too much. Flash objects are light on filesize and bandwidth, but the only thing i would have trouble doing is assigning any random texture to a 2.5D (in between 2D and 3D objects because flash doesnt do 3D on its own) object from a file that is not already in the flash file itself.
For a gallery, I like both the gallery and the wiki. there shouldnt be more than that. SS can do whatever they want because they get the most views no matter what. they have their own downloads gallery so theres no point in them merging anywhere over here (i'll get shot for that one)
forums- too many. period. don't make one to fit in... it only causes less posts in all of them. so keep it small and dedicate to KC... or else i will get you
long story short:
1. 3D models unlikely, unless there's an uber flash artist that can help (and that isnt me yet)
2. too many forums. stick to KC because its the biggest and i like it here
3. gallery/wiki- don't change them... i like both