I think I said I would send you a link to the cheap chinese headlights:
https://www.dealextreme.com/p/t6-assault-crown-wat...
They ship from Hong Kong and take 2-3 weeks to get to the US. They may also ship to NZ, if you don't plan to use it while you're here.
There's a cool British website that sells a good headpiece for it too.
This website is significantly cheaper than my Dad just paid for mine for Christmas. Boo! I don't know if you've used my lamp Anna but it's this one.
If the cheap chinese lamp is the one Ali also suggested to me, I recived mine in 5 days. There is and SKU you can select that will ship from somewhere in the US I think.
This one is the one that ships from the US warehouse. I had ordered mine monday morning 8am and it arrived on Friday. (just in time for Mt. Tom!)
https://www.dealextreme.com/p/t6-assault-crown-wat...
ooh il do some investigations! thankyou! 5 day delivery sounds very convenient