I personally prefer the tutu mod over the BGT, but regardless you're still playing the same game so it's all a matter of preference.
Anyway I'd like to recommend the
BG1 NPC Project mod whenever I can. What it does is it adds BG2 style banter and dialogue between both you and the NPC companions throughout the game. Otherwise you'll quickly find most companions in BG1 tend to be extremely... well, silent and boring. More a stat utility than a genuine character.
It *does* change the game some so if you're intent on a 'pure' first playthrough it might be avoided. But that said if you want the best possible first experience I'd highly recommend it as it's extremely high quality and playing through the original game without it seems rather lifeless to me now. I mean by default, Imoen, one of the most important characters in the series, has
two sets dialogue in the whole of BG1, easily a 30+ hour game. This mod helps add some life to the characters, and does so extremely well!
Yes, it works with the BGT mod as well.