Since “harmonising with ICAO” guidelines the process of flying in Australia on a foreign licence has gone from quick and simple to almost unworkable. ICAO say you should be able to rock up and go flying if you hold a licence issued by an ICAO compliant authority, however CASA want all sorts of hurdles jumped.
Heres a
link to the application form. I’ve had people tell me it takes up to 3 months to process.