Hi Jonah
This is an amazing trip, but I prefer to visit all these places separately as I like to see as much as I can. This is a good trip if you want to 'test the waters' and then go back to visit the places you would like to see more of. I too would not be able to take so many days off in one go hence I am waiting till I retire before I do the joint Australia / New Zealand trip (if it is still available then).
Jaya