But, consider that for some reason he halved that. Would you be willing to put 3500 in your Tour? I wouldn't. Not because I don't like my car, but eventually the money going in to keep it on the road can better be spent on a newer, much more reliable car.
I wouldn't sell it if it had so many problems. Unless I told the buyer that it's going to need a ton of work.
You can part out parts but demand isn't that high.
Do you still owe on the car?