The shipping costs at Nuclear Blast and Hellion Records (the only two shops selling the KIT DVD) are pretty steep, about 20€. I think the postage rates are fixed so if you want to be economic you should order a lot of stuff at once. But if you just want the DVD you should order it directly from the festival organisers, I bought two copies that way and the total price incl. shipping was 50€. I don't know what they'll charge for delivery to the US but you should definitely drop them an email.
To be brutally honest about the DVD, JP's performance is far from flawless but fun to watch anyway and the filming and production are high quality. It is the best live Panzer material you can buy at the moment and with all the other great bands on there, buying this DVD is really a no-brainer.