I'm going to New Zealand for a conference next month. Of course I plan to take advantage of the opportunity by bringing along my portable astrophotography setup (70mm refractor with FF/FR and focus motor/controller, QHY163M camera and FW, Mini guide scope and ASI365MC cam, AstroTrac with head, wedge and tripod, laptop). All told, this represents a fair investment of equipment and I'd like to avoid any issues with NZ Customs. I've already read about getting a Y38 form (I'm Canadian - not sure what the US equivalent is) that lists equipment and serial numbers. I also found a nice photo equipment backpack that will allow me to carry the most expensive items and stay under the 7kg AirNZ carry-on weight limit.
I'd be interested in any experiences of people taking astro equipment into NZ and any advice on how to do this efficiently without running into problems with NZ Customs.