Could someone make a mod that would let you train Carth, Mission, Zaalbar, and Canderous (and maybe even HK?) into Jedi Consular/Sentinel/Guardian? I know there is a class-swapping glitch but I've tried and it doesn't work for the PC version. If someone could make a mod like this that'd be great, I'd make it myself but I can't mod anything if i tried.
You can use the Save Game Editor. Sorry I don't have a link, but you should be able to find it on KotORFiles.
Check out RedHawke's KOTOR 1 mods.
RedHawke has many, many awesome mods for both games, including a "Make Mission a Jedi", "Make Carth a Jedi", and "Make Canderous a (Dark) Jedi".
The make Mission a Jedi mod is awesome! I love her custom robes (in the booster pack). You even get to choose her Jedi class ingame :D. It's earned a permanent place is my override folder, though I have yet to try the other Jedi mods.