Maybe try the tz350.com forum, and contact Alistair and Kerry Wilton, they bring a stack of stuff across each year in a container for the Island Classic, Australia Day weekend at Phillip Island. Though you obviously won't need a container, they may be able to steer you towards a fountain of knowledge regarding freight from NZ. If you have any extra room, contact DJ and get him to send over one or two of those NZ tracks....