Ramjet, I doubt that NZ would accept a foreign medical, other than for a temporary validation. The initial Class One there had me jump through all the hoops including stress ecg.
But once they have you on file, they are a whole lot more reasonable than CASA. Unlike CASA you don’t automatically have to do a stress ecg just because you are over 65. Of course this is dependent upon your basic blood pressure, hearing and eyesight etc being good enough for the doctor to tick the necessary boxes. The guy I saw was great to deal with, but I gained the impression that he would give anyone who was overweight the third degree.