Regarding the original question, if you want to get an NZ PPL, you'll need to do NZ theory exams as well as about 55 hours' flying. I think 2 months in winter will not suffice.
If you want to do your UK PPL hours in NZ, but never get an NZ license, then I recommend you do your exams in the UK before you leave. You might also speak to CTC in Hamilton who have several UKCAA examiners on staff. They probably won't do the training for you - not their thing - but can offer advice and perhaps supply an examiner to do the JAA PPL LST in NZ after you've done the required training.
In the latter case though, it is unlikely that an aero club instructor in NZ can prepare you efficiently for the JAA PPL. The standard in NZ is just as high, no question there, but the requirements are different. In particular, the type of flying done in Dunedin and Queenstown will certainly be exciting and trip-of-a-lifetime stuff, but will not necessarily prepare you for flying in England. (Scotland & Wales, maybe!) Something to consider.
Last edited by Oktas8; 4th Feb 2012 at 09:05.