My weidu log:
// Log of Currently Installed WeiDU Mods
// The top of the file is the 'oldest' mod
// ~TP2_File~ #language_number #component_number // [Subcomponent Name -> ] Component Name [ : Version]
~BG2FIXPACK/SETUP-BG2FIXPACK.TP2~ #0 #0 // BG2 Fixpack - Core Fixes
~SETUP-BGT.TP2~ #0 #0 // Baldur's Gate Trilogy - Core: 1.07 WIP-08-09-28
~RR/SETUP-RR.TP2~ #0 #0 // Proper dual-wielding implementation for Thieves and Bards: v4.01
~RR/SETUP-RR.TP2~ #0 #1 // Thief kit revisions: v4.01
~RR/SETUP-RR.TP2~ #0 #2 // Thief High Level Ability revisions: v4.01
~RR/SETUP-RR.TP2~ #0 #3 // Proper racial adjustments for thieving skills: v4.01
~RR/SETUP-RR.TP2~ #0 #4 // Bard kit revisions: v4.01
~RR/SETUP-RR.TP2~ #0 #5 // Bard High Level Ability revisions: v4.01
~RR/SETUP-RR.TP2~ #0 #6 // Proper spell progression for Bards: v4.01
~RR/SETUP-RR.TP2~ #0 #7 // Additional equipment for Thieves and Bards: v4.01
~RR/SETUP-RR.TP2~ #0 #8 // Upgradeable Equipment: v4.01
~RR/SETUP-RR.TP2~ #0 #9 // Revised Thievery -> Use PnP thievery potions and prevent their effects from stacking: v4.01
~RR/SETUP-RR.TP2~ #0 #11 // Chosen of Cyric encounter: v4.01
~RR/SETUP-RR.TP2~ #0 #12 // Shadow Thief Improvements: v4.01
Since my CDs are scratched, I tried to uninstall and reinstall, and while doing so I tried to travel to Small Teeth Pass area with a BG2+ToB+patch+G3-BG2Fixpack (no BGT). It worked fine. After installing the mods it crashed again. I tried to CLUAConsole the party in the area (AR1700) and it worked fine, so my AREA1700.BIF file works properly, but after loading the area the Cloackwood movie started (the one where you see a peasant with an axe on a cliff, and a wyvern flies away with a cow) so I think it's a worldmap issue.
Don't mind the rogue rebalancing mod, since I wasn't using it before the uninstall (I took the reinstall thing as an opportunity to try it out with a new game).
I checked the BG2 cache folder after the crashes and the AREA1700.bif file I found there was 16mb instead than 14mb. If I'm not wrong BG1's area Cloakwood is AREA1700 too, so I'm guessing it tries to load the BG1 map instead of the BG2 one?