Not a NZ source, but if you can wait a couple of weeks the LEDs on here are VERY cheap and free delivery. http://dx.com/s/dashboard+led just need you to figure out what bulb type they are. Adam
I ran across these in my old Honda a couple of years ago, our local auto sparky had some. They are just a bulb and the little wires untwist from the base. I think they were about 50c each