I would never sell a gun to someone that used a FFL that required I ship to them from my FFL. What a waste of money. Anyone trying to buy a gun should know if it is legal for them to purchase a gun. If they don't, sorry the gun no longer belongs to me. If his FFL keeps the gun that is entirely between his FFL and the buyer. If the buyer agreed to pay my FFL's fees and return shipping costs I might take the gun back.