You can fly a RAAUS registered aircraft anywhere if YOU are appropriately licenced...and another point, who the hell can actually stop you?
A suitably approved / certified RAAUS aircraft WITHIN Australia :-)
Who can stop you? Taking your certificate off you will stop you if you have been naughty and if that doesn't stop you, the local plods will come and grab you when you land, just like they tried to do recently to someone in Vic, whom ran away when they saw the divvy van, lol (true story).