Well, here I am again, now back at school. I've started doing some optimization on those problem spots- polygon cruncher does indeed help a lot, thanks Maniac. I hope I can get this thing fixed up and working, so I can actually do something with it. Consider it a WIP with semi-low priority compared to my film classes. If anyone else wants to help with the optimization/modeling, just PM me- I'd appreciate the assistance.

Edit: The good news is, the map compiles without errors. The bad news is that it also exceptions upon load in CE. I already tried erasing the bsp and recompiling from scratch to clear any old weather palettes (the solution last time this happened), and I erased all tags from a version and tried compiling that. Same result. It has to be something that only loads in the full game, since it appears in sapien just fine. Maybe something to do with the portalling?