Firstly Fisher have an authorized dealer here in NZ -
http://www.puiakisupply.co.nz/You will find the guys at Fisher to cater for your needs if you go with a F2/F5
If you are looking at a Teknetics Eurotek Pro then you will have to buy one in the US then ship it to NZ. Easy enough to do and cost competitive -
I have owned and still own both the units you mention and they are fantastic with the ETP taking the edge on depth, its uses 1 x 9v, iron audio is awesome & the fact that the ETP coils are interchangeable with 7 other First Texas units - Teknetics - Alpha - Delta - Gamma - Omega - G2 & Fisher F5 - Gold Bug
Handy if you are looking at building an arsenal of coils which can be used with both coin/relic machines as well as the gold machines mentioned -
Either way you should be happy however if you are looking for the latest technology with strong upgradable features then you need the ETP
Hope this helps