0. Why not mail it?
1. Read http://www.techguidefortravel.com/2010/06/22/important-differences-between-the-kindle-and-nook-for-international-travelers/
I'm unsure if consumers can get around the restrictions.
2. I'm in California and mail from here or Massachusetts didn't vary much. So little that I fear you'll have to try both and decide.
3. See #1