I am NZ night rated but not Oz NVFR. Is a big difference between the 2 countries as there are no x country flights in the NZ rating nor nav by aides mainly a few circuits and may be a bit of a strop around the city.
I'm sure the insurance comapnies won't like people stooging around in the gloom NVFR nor the CP for that matter, he/she will probably be having kittens knowing their gaggle of pilots are still out and about
I think I will leave the night stuff untill I am flying IFR, I have a hard enough job finding my way round in the day time let alone in the dark.