I say he went to escape the pressure of everybody in the galaxy trying to get him to solve their problems and having to play psychologist with his friends... <_<
Maybe this should be on the spoiler's forum?
For the toughest charecter in KOTOR1 I would have said HK, but since he was blown to pieces and had to be reasembled, losing his memory again, I say Mandalore is the toughest
When talking to GOTO I somehow lost influence with him, but then was able to talk about his operations on Nar Shadda. Later after I killed someone who was asking for money and gained influence, I could no longer talk about that.
The same? No, not really. As the story progresses the Remote will get more powerful thanks to Bao-Dur's tinkering. It can also fire lasers, unlike matinence droids, and can not be killed. They might be the same model, though.
The holo shows Bastila teling T3 to go in search of other Jedi. This is how he found the Exile.
No, influence is not needed, or a high repair skill.(You do get a weird sort of meditation with a high repair, though) All you need is a high intelligence.