I installed both Svosh's Good / Evil Robe Mod and Kazeite's LD Bastila Robe Mod but discovered a problem with the former on which the latter is based on. In Svosh's mod, the red Sith robes featured are worn by Bastila when you find her at the top of the Rakatan temple in the first game. However, if you join Bastila and she joins your party, she reverts back to the default Dark Jedi robes. More disappointing is that Bastila will also revert to the black Dark Jedi robes on the Star Forge as well if you do not join her. Either way the mod does not work completely.
Why does this occur? I had almost given up on the idea of a fix because I could not reach Svosh for assistance but I found an old playthrough video by Shem where Bastila is wearing these same robes on the Star Forge when you confront her in the light side option. So it is possible to fix the mod in question. ChAiNz.2da made a similar mod that was also released here on Deadly Stream called Bastila's Revelation Robes but the same problem exists.