Descent,
I'm not terribly current with the new stuff, except CASA's determination to wipe out aviation in Australia.
It was about twenty years ago I did the Kiwi conversion. Couple of painless exams and a B767 sim ride with Air NZ. Whole thing cost about a grand and took a couple of weeks, very good fly fishing in between the books. NZ CAA very very helpful compared with Aus, the NZ licence seemed to be better accepted around the world as well.