i found a 93gixxer 750, that had been dropped and wasnt running the owner said the carbs just needed to be rebuilt or cleaned. for 1200 but he had already sold it. your probably right about changing the sprockets. im no stunter either just thought about trying it something different for the weekends. if it doesnt work out i might just use the bike for track days. i have an 04 cbr600rr and its my daily driver, year round so i dont want to use that. waiting for a couple wrecks in the off season might be the best bet.