MUAHAHAHAHA! You all envy me so much. My track whore isn't exactly a TRUE 250GP, but it's as close as it gets without getting a Yamaha TZ250 or Honda RS250R.
Basically as a first track bike, you can't go wrong with an SV650. HOWEVER, if you are mechanically inclined and feel comfortable tearing into your engine, you can find a nice mid 90's model TZ250 with spares for $4000 no problem. I believe those year models have about 75hp and weigh in at a paltry 220lbs or so (80lbs less than my RS250!). You will never have more fun riding on the track than on a 250GP bike, it's unreal almost!
But if you wanna go the cheap route, buy some used plastics, or spend $500 and get some fiberglass race bodywork. All you need then is a few cans of primer and spray paint, and a creative mind
