Hello,
Hope you're move back goes nice and smoothly. Am sorry to hear things havent worked out for you but at least you know now and can make the change.
I would advertise on
Jobs Auckland Jobs Flat House Free Classifieds New Zealand (gumtree website) as well for your things. Lots of folks just moving to NZ use that site as well. Pop it in the furniture section as well as the rentals page as a lot of rentals are unfurnished.
You may even want to contact people renting unfurnished places to see if they want to buy things off you???
Good luck with it all!