No "Pro Trader" will do this trade. Especially since he /she has to bear the risk of loss.

(1) His payment methods are all unsafe.

(2) If you want, I can provide you the serial numbers for 20 Iphones that will check out, but which I will not own That's not a good check.

You should ask him to do International Cash on Delivery. He can go arrange something with FedEx, UPS, or DHL. You should offer to pick up the tab for the additional shipping cost due to CoD. It's a win-win. He gets the cash upon delivery, delivered to him via FedEx, UPS or DHL.