It cost me about $300 to learn this lesson. Now, when somebody asks for international shipping, I just quote the high price and give a short robotic explanation.
Sometimes people don't mind:
I'm very glad to invite me to your auction and to get chance to take your fine parts. The Topline crank-set is my favorite one and I've been using four sets for my bicycles. I hardly ever see a new one in recent years. I don't mind the shipping cost what you anxious about. Thank you very much.
Takashi from Japan
Takashi seems like an alright guy. Like many Japanese, he is also willing to pay a fair price for good components. If I could lower my shipping costs, I would happily do much more business with Japan.