Have you guys heard of freight forwarding companies, such as MYUS.COM or Bongo International etc? A customer/recipient of a bow from outside America can take out membership which usually doesn't cost any money, and it gives them a postal address in the USA. The maker/seller ships the bow locally to one of the warehouses. These companies get much better rates than private citizens from couriers like DHL, UPS, etc, so full length bows can be shipped at significant savings, even when local postage is added to the total.
I have used them plenty of times for ebay vintage bow purchases, they can also consolidate several packages from different sellers into one shipment.
Hamish.