Use the same deal I did to get my first two sets. Second two sets I got Goomba to pick me up at the BOGO at FYE. However, due to FYE's ridiculous pricing, this deal gives you basically the same price:
The deal is 20% off with the coupon code. It brings each set to about $25 including the Limited Edition of the movie. So $125 + shipping + customs for the entire series:
Since it likely won't ship all at once, there's a higher chance you'll get past customs I think. Of course, more chances of being hit by customs. I never got charged on them. Others have. So YMMV!