If this Kickstarter funds, we will set up a print on demand (POD) option through DrivethruRPG, which means that the book will ship internationally. I will give all $10 and higher Kickstarter backers a code to print the book at cost. That won't save people in the US any money, but it will allow our international friends to get a physical copy, (assuming we can work out the details with DrivethruRPG.)
We'd love to be able to ship books to our friends around the world, but we have been burned in the past by the postal system. International shipping prices can and do change, so that a $10 book might cost $50 to ship. Unfortunately, that means it's not safe for us to ship internationally as a Kickstarter reward.