I have done the NZ tour a few years ago now..when I went it was via Hong Kong...
I hope you can link up with someone who is thinking of going.
It is a long flight but it is worth it. Lovely sights to see. I didn’t manage to many extra optional flights due to weather conditions not on the ground but in the air.
Many hotelmstays along the way, some where bettervthan others but it’s only for a few nights, take some travel wash so you can wash a few bits on the way.
Any other questions just ask.
Cindy