I have the opportunity to buy a 99 CR250 for $600. My idea was to keep the new tires and part out the rest of the bike. Everyhting is in perfect working order, except for the motor. It ran rough before the jug was taken off, the jug was never put back on. Any ideas if this would be worth my while to part out on Ebay? Any Worst case scenario guesses on how much I would make.