For your information, elgarta, AU and EU consoles are compatible with each other, and so are AU and EU games.
The only difference between EU and AU hardware, is the Charger/Wall Plug.
Ontopic: I don't really know any other place than Play-Asia and eBay, being able to send EU 3DS's, but I know about a local Games Store, which imports stuff on request.
http://www.foregames.nl/
While they import, I'm not quite sure if they export.
If they export, they most likely want to have everything covered by you, which the price of the console including VAT, shipping costs, packaging costs, etc.
And I checked, that the cheapest shipping, which guarantees arrival to America, is around € 142,00, excluding the 3DS.