We recently shipped our 16 m yacht from the UK to
Seattle and it cost a bomb. You need to contact one of the yacht
shipping companies that has a
route going from NZ to OZ and see how it would
work for you. The sailings are infrequent and they may only take you to
Sydney or some other place than
Brisbane. Send an
email asking about their routes to Dockwise, Sevenstar or try the agents Peters and May.
And you will need to skip lunch for about 5 years to pay for it!
Dhillen