I have been offered by a reputable dealer a fair price for a vintage guitar. So the dealer is willing to send me funds via paypal and then have me ship him the guitar. So am I missing anything? I am wondering if he could renege, stop the paypal payment, after receiving the item and claim it wasn't like he thought it would be. I have explained the condition, etc., but don't want to get into some dispute, in case he changes his mind. Any advice?