I'm sorry I cannot answer your question on this, but when I read your post, I realized it was an opportunity for me to ask a question of my own about the Kindle.
You obviously believe it is worthwhile. Are you able to read other e-books (non-Amazon.com e-books) on it?
One alternative to receiving it via mail here is to open an account at Skybox.com or another remailing service. They deal with customs, so they may be able to tell you about any duty fees on the Kindle.
Professional, bilingual writer at your service.