HMM!! i believe so there are quite a few guys that have them i think though they may be hard to come buy .Don't really know for sure but a couple guys down under are Monolicious and silver dragon with awsome collections check them out!!!!
Like Bluey said they are not on the noxious list yet, different states also have their own laws and im pretty sure there are not on any individual state, noxious lists especially you guys in NSW have pretty much le best state laws around.
Looks like the problem in finding them is; 1. PBs are not on the 'allowed to be brought in' list and 2. The countries PBs are from on not on the list of countries permitted to import from.