Nerritti: Alright, I'll go ahead and use BGT then. By the way, I threw together a quick list in what I hope is a decent install order (if you have any suggestions as far as changing the order, that would be helpful):
Baldur's Gate
Baldur's Gate II
Gibberlings 3 BG2 Fixpack (Using Linux WeiDU)
Baldur's Gate Trilogy
BGT Fixpack
BG1 GUI
Restored Textscreen Music (and English Language Pack)
Baldur's Gate Graphics Overhaul
BG Mini-Quests and Encounters
BG1 Unfinished Business
The Lure of the Sirine's Call
Sword Coast Stratagems
BG1 NPC Project
I usually only install the fixpack and tweakpack, so am not sure when it's best to install what, but I'm sure you can find that in mod guides, perhaps the one here on GOG too. I see one potential issue though. At least with easyTutu, it's recommended to install it when the base installs are clean, ie before any mods. Not sure if this applies to BGT too, but I would assume so, in which case you could install the Fixpack after BGT. See there are two fixpacks there though, so maybe you are well on top of this, just thought I'd point that out. I made that mistake on my own install, so BG1 got messed up.
Good luck. I hope you get it working :)