My biggest concern would be that he's an independent dealer (and a small one judging by the fact that he only has 15 cars on his lot).
Where did he get the car? Auction is a likely guess. Why didn't a larger dealer jumnp on the car if it were so great?
I'm not saying it's a bad car, just asking questions that as a buyer, I would want a reasonable answer to.
Price seems OK, not great.