That's absolutely correct, yes we are based in US and we do ship world-wide, including the NZ. We realize that some of the parts are only available in US (especially for American models) and a lot of off-road enthusiasts import them from US directly. You can check our off-road parts section
here to see if it's going to be somehow useful for you guys.
I am a big fan of 4x4 activity as well, so I would be glad to meet new people and see how you guys do it in NZ.