That car could have every mod in the book. But if hes driven it rough and the engine goes, its gonna cost you a few Gs to get fixed properly...And with those mods, he very well may have. So I guess, how well was it taken care of? Have you ahd it inspected?
I would personally not pay over $9k for it. And thats assuming that its the same 3-stage ,limited yellwo pearlglow paint job that mine is...