Does the KOTOR 1 story have multiple directions/endings it can go with respect to cutscenes and endings if you go light side vs dark side? I'm not wanting spoilers, just wanting to know if it's worth replaying going with a jedi/sith of the opposite side of the force from what I went with initially to replay the game with.

It is possible to decide at the end if you want to go the light or dark side.
Even if you have played the whole game as dark sider you can play the end on the light side.