just wondering if any on u have doin engine work on the 750 or know of a price tag its goona cost me...im lookin at a gsx 750 with about 20000 miles on it and it has a bent valve and needing a timing chain... theres a new head that comes with along with it plus a extra intake cam and exhaust cam and extra fuel pump.. Is this somthing that i should be worried about..Im gettin a good deal ...somewhere around 2 grand or soo...