My son, who is an ex-pat, has things in storage with us that he couldn't bear to part with, wants if and when he returns to the US, but were too expensive to ship. Depending upon how long you anticipate being in New Zealand that's an option you might want to look at.
As far as I know, Australia and New Zealand do not use the comp-tip. Only place that I know of is the US.
Getting shipping prices on a Hobie 16 involves being very careful in describing it. If you describe it without taking it apart, it's a problem. For example, if you say a 27' mast, that means a forty-foot container (about $5K). Take the mast apart, and you can use a twenty-foot container at $3k. If the width is really 7-11, that's fine, but if it goes over eight feet, that's an oversize container.
I'd also send an email to Matt Miller to find someone in Hobie's shipping department. Those guys know how to ship these boats, and can probably give you some good leads.
Cheap shipping is all about doing some looking and doing some thinking. For instance, LAX to Hong Kong to Auckland might be very cheap. Why? Because a lot of empty containers go LAX to Hong Kong. Drive you truck with the boat to Los Angeles, unload the boat, and sell your truck through someone who does consignment car sales. Hobie might be willing to stick it on one of their containers going to Auckland. My guess is they rarely max out the container. How about your classmates in school? Anybody working for a company that does shipping to that part of the world?
There's a dealer in Auckland --
http://www.nzwatershed.co.nz. Contact them. They have to have these boats shipped to them. I bet they have some good ideas. Also, a new Hobie 16 is $14,500 approximately in US dollars. That's going to be the starting point for used prices.
Jim