It's easy enough to adjust the UVs in question:
The problem is turning that into a functional game model. Taina's Replacer, the most practical way to make UV edits, throws an error when trying to write the MDX.
Edit: Thanks to a mysterious benefactor whose secret alien technology allows for the functional compiling of models, I present this:
https://www.darthparametric.com/files/kotor/k1/[K1]_Korriban_M36AA_01_UV_Edit.7z
It's not perfect and could do with some further tweaking, but it seems like the edit didn't cause the level to explode, which is the most important thing. Try it out and let me know if there are any problems.