In order to "fix" the shaved door handles, you have to attach the new handles, attach the new door latch assembly and fix any other materials used in making it look decent. This is commonly done with fiberglass. If it was me, I would get a new pair of doors and save a lot of hassle. However, you can do a lot better than 6500. Try talking him down to 5ish. then try the thing out. If you can get it for that, and can find the doors, it may be worth buying.