Dear Matt,
I am definitely interested in the answer to Greg’s question, I am not familiar with eBay Global Shipping.
I had a similar (although less extreme) situation just a month ago – I had bought some used duplos cheap on BrickLink (a lot of them were at Greenberg even though you couldn’t see them) and I found a whole mess of them super cheap, but they were in Canadia eh, and according to the seller it would’ve cost $30 to mail a $25 order (I added on other parts, of course, duh), mostly cause of the duplos. Fortunately they let me cancel the order, but if there’s a way to ship it cheaper, I would place that order again.
Crapfully crap,
Ben