Here's links to the web sites for a couple of "pay to play" places in NZ. You might contact them for details on how to get good throwing knives into NZ, what they use, maybe a local source in NZ, contacts for local (NZ-based) knife throwing organization, etc....
No outside links to non Blade Forums dealers.
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Bobby Branton
Moderator
Keep us informed of what you find out there in NZ.