Still see nothing wrong with this procedure:
Verify RV is what you want and that clear title is in seller's name.
Arrange for a sale/delivery date. Have seller's bank give you drafting instructions so you can wire transfer money to him. If only a few days, likely no deposit is needed. Face it, the deposit is because you don't think a deal will go through.
On closing date, reinspect RV (is as agreed). Call your bank and have them wire funds to the seller's account. When seller's bank conforms money has arrived, finish necessary paperwork to transfer ownership and take physical possession.
Everyone is protected throughout the process. Only fee is what the bank charges to wire funds.
