Small repairs really, kick-starters are known to be bad and rattle in the banshee, and the kill switch is just a case of checking the wiring, may just be a loose terminal.
At the end of the day as I said before, go have a look be smart and make a check list if things to go over, and make sure you go through them, don't let the guy tell you otherwise or get all mushy and just have that 'I've gotta have it' attitude.