WOW, you poor thing what a horrible experience for you. 

I would NOT NO WAY be sending the item. This is simply not how ebay tansactions work. If the buyer wants the item badly enough they will agree to your terms. Its pretty simple;  payment for the item has NOT been received by the Seller. I would ask the buyer to retrieve his funds and pay you via paypal    

I would change your terms of sale for intl buyers to paypal only.

I hope it works out for you.