If you want to use the NRMA or ChargeFox networks right now the Tesla Owners Club of Australia (TOCA) have a CHAdeMO adapter loan program.CCS2 adaptors for type 2 cars, while on the Tesla web site are not yet available in Australia. I checked. This is a real pain since J1772 seems to be being phased out. The NRMA chargers in Pokolbin Hunter valley are CCS@ and ChaDemo. Useless to me in my type2 only car!
I used the CHAdeMO adapter successfully in QLD a few weeks ago and my car is the same age as yours.
Not sure why you're worried about J1772 being phased out as that is an AC charging standard that is being replaced by Type 2 which is native to Model S.