Ah, the poor disrespected coupe. Most of the what to look for items have already been well stated here and probably the only other thing I would add is to do the magnet test on the body, to make sure that a highly skilled bondo "sculptor" did not have a hand in the cars restoration. As far as an opinion on the price, Mustang prices on good cars these days continue to escalate and if the car is up to snuff mechanically and passes the rest of the mechanical and cosmetic tests, 10.5k is not out of line for this car at least around where I live, as I see well done coupes routinely go for even more than that. I could not agree more with GaPonyFarm more, that anyone who thinks that they can do a nice, quality restoration on one of these cars for 6k is either misinformed, can do the work themselves and is highly skilled in all facets of auto restoration, has a lot of good contacts in the resto business and can cut some great deals, or is out of touch with todays prices if you are farming any major portion the work out and writing the check. I restored a 66 coupe six years ago and even with doing most of the work (except paint) we had 10K+ into the car. The result was a nice looking car capable of knocking down a few trophys at local shows but make no mistake it has its flaws. If the car checks out to your satisfaction, I'm sure they will take care of the seatback (I do agree that taking a pictuer of it hanging off is kind of strange) and would align and adjust the trumpets (I see many cars with this issue), if your going to write the check. Good luck !!