Hey, great news! We've managed to find a way to ship internationally to both the EU and UK, so you can feel free to back any of the physical reward tiers you'd like! Thanks again for your patience, and for bringing this up.
I've deleted my earlier comment linking this morning's Kickstarter update so as not to cause a comment logjam or create any confusion. Enjoy your rewards, and thanks so much for supporting the game. :)