Answer this question: How many F's in the words "Jobs in NZ"? Correct, there are no F'in Jobs in NZ!
Instructing hours are good hours but unless you are one of those "sky gods" and make it to ANZ, you are wasting your time, if you want to be a "future Boeing Cpt" If you want to move things along, career wise, you will need to travel overseas. Bad time at the moment but things will pick up, I.E., boom and bust.
From an outsider looking in I've seen people screw their careers waiting around to get into ANZ.