You'll have to invoice the buyer and add international shipping. Decide if you want to add delivery confirmation and insurance - you'll have to figure what you're willing to pay out of pocket should the item not arrive and they open up a claim. And set your buyer requirements - stating where you ship in the listing is not enough
go to your my ebay page
hover over account tab
click on site preferences
Buyer requirements
show and edit on the right
Have a primary shipping address in a location I don't ship to
You can do any other buyer requirements at the same time.