Before you can fly off by yourself you will need to convert your licence to a New Zealand licence, it's not too difficult, however if you have only the minumum hours for the PPL it is possible that you may not meet the requirements of a New Zealand licence. Best check out the New Zealand CAA website (
Civil Aviation Authority of New Zealand) and look at the section on validating/converting licences.
There's some other good places that you may wish to check out,
North Shore Aero Club,
Waikato Aero Club,
New Plymouth Aero Club,
Flight Training Manawatu.
Most of these places have websites, a google search should find them for you. Also look at the FlyingNZ (Royal New Zealand Aero Club) website, they have info and links to most aero clubs in New Zealand.
WELCOME TO FLYING NZ