Hi Anna
As someone who is just about to head to Australia (in 10 days!) and have been trying to secure work there with limited Aus registration I would definitely recommend pursuing the NZ registration rather than going the route I'm going. It might seem daunting but worth it for all the effort I've been putting in to get work I'm sorry I didn't do it. Once you get NZ reg and then apply for Aus reg it'll be full reg and there'll be so many more job opportunities available to you.
Best of luck with your application.
Aoife