The first link below is for the North Island only, which can be used with my earliest Post 136 for the South Island.
The second link is for the whole of New Zealand, which includes everything from Airports to Points of Interests.
As always, although the links below are downloadable, it is still recommended to just COPY the URLs and add them via the Network Link feature in Google Earth so that updates can be immediately reflected when available.
For New Zealand North Island only:
For the whole of New Zealand: