If the engine has been overhauled, ask for the same items. Don't rely too much on the exterior shot to indicate the condition of the paint. Airplanes seem to be naturally photogenic, and always appear better in pictures than they do on the ramp. Or, you can get the seller to bring the aircraft to you. Obviously this is better, and here's an agreement that's been used many times to facilitate this arrangement.
Seller warrants the air- craft title to be free and clear of all liens.
Should the aircraft fail to pass a pre-purchase inspection to the buyer's satisfaction, seller agrees to refund all of buyer's deposit, less actual expenses incurred in delivery and return flight. Said expenses are agreed to be limited to fuel, oil, lodging, and meals. This agreement becomes null and void upon such refund. For the buyer, it's obviously his deposit. If you want to buy, he wants to sell, and the aircraft is as represented, this arrangement will work nicely.