I just charge my International buyers (Canada, Mexico, Asia, Europe) a flat $25 for anything that will inside a small flat rate box, and $60 for anything bigger/bulkier (shipped via usps priority mail). I don't ship out anything on cheap International First Class mail.... ever. If the $490 shipment gets lost, I have to reship it again or refund the customer their purchase price. Either way, I'm out of luck and lost $490 out of pocket... all because I'm trying to save him a few dollars in shipping fees. So I say f*ck it... $60 shipping for your $490 purchase. I also don't do "combined" shipping for International customers. If they buy (2) units, and each unit/set costs $60 to ship, I charge them $120... and they get (2) packages delivered to them separately. (lessens my chance that both packages will get lost) I have a current customer that paid $300 on shipping fees alone.... but he ordered $3K worth of stuff. He'll get (5) separate boxes shipped to him.