Be aware that if you but duty free in NZ to take to Bali you will have it taken off you in Aussie as you transit though, we were not told of any changes and were not the only ones caught out.
We have done this before with no probs.
Our travel agaent knew nothing and no paperwork from pacific blue mentions anything other that the amount you are allowed on plane.
So 2 bottles went in there bin and 100 yrds away had to repurchase in Aussie duty frr not immpressed.