People still appreciate clean 'used' cars and a Trans Am just adds to that 'gotta have it' factor for many potential buyers hoping for a little more than a generic 'used' car in that price range. As long as the car is STOCK! I haven't seen mention of that. If the car is truly in very good to excellent stock condition with no issues (Carfax, title, no needs whatsoever) I would ask $6,750 and settle on about $6,000. I think you can get that if the car meets the criteria I posted about. There are many years of wonderful driving ahead for the next owner in this low mileage T/A and $6,000 is not far fetched IMO. If a friend or relative needed a 'used' car I would have no problem telling them to take a look.
I try to put myself in someone else's shoes. If I lost my rides and had very little money, and I was in dire need of a 'used' car, I would seriously consider it, knowing what I do about these F-bodies. They have treated me well for over 17 years now, but again, they are stock, maintained well and certainly not abused. If you do sell, GLWS!!