Haha funny to look back at this thread now lol. Yep Dodongo's cavern and Big Boo's mansion those I extracted using Lemmy's plug in which is in credits for those two also, I still love this plug in it will last a long time. Most of that stuff is made from scratch though.

Ciao, hello, first time here for me, and its a great pleasure. Sorry for bad english.

I dont much know about tools modding, but im good at having silly ideas!
for levels suggestion:
-DonkeyKong64 (for what i remember it was not a lot platformer and have a strong beat'em'up/shooter gameplay/design)
-Jet Force gemini

for both level and models:
-ShadowMan
-Body Harvest (probably not possible for the map cause was an open world, and the bug-foes models was low poly and lowres(and slow/statical behaviour), but i think the old style sci-fi feeling and visuals it have can be a real "overjoy" for old age nerd like me, and Tal'Set of course ahaha.