As one half of our team isn't from America either, we do understand where you're coming from. However, there will be one set price based on the time we spent developing the game, and the number of assets and features included. We try to keep the price as low as possible, but we think we still deserve to be paid accordingly for the work and energy we put into developing this project.
If the final price is still too high, you might want to wait a few years for a sale, or take part in a currently ongoing giveaway we're doing on Tumblr, where you can win a free key. 😄