having lived in NZ and posted stuff to and from, it always costs a fortune, if you want the item that badly you might just have to pay. the cheapest option would be sea frieight, but it takes ages. not sure who you would go to to sort that, a kiwi mate that lived in the alps asked me to bring a load of stuff back from the alps to the uk a few years back so it could be collected and sent from the uk which was an easier option. if you are in Wellington, it was Tall Beast, i'd guess if you're in wellington and you ride you'd know who that was!