hey all, im looking at buying a YZ 250- 2003 and the dealer tells me it has about 20 hours on it, but where u put ur feet, near the pegs on the frame have paint worn off from use, the tires show some use... its set up with a Pro circuit pipe platnium series..renthal bars + sprokets..after market body.. looks like it could have been raced but he tells me no... they want 3000 firm for it.. what do i look at to make sure its a good bike.... how much power should it have.... what should i listen fore....ect