How about sending them to gin gin for circuit training?
Gin Gin is already used for circuit training because there simply isn't enough capacity at Pearce. Pearce is an extremely busy training base, with the RAAF's 2FTS and 79SQN and the RSAF's 130 Squadron all carrying out continuous circuit training, instrument approach training, departures & arrivals to & from the training areas, together with movements by other visiting military aircraft. With all due respect, I would suggest that's a very different traffic situation to Darwin or Townsville, and not compatible with RPT.
The experience at Williamtown has shown that once RPT operations are allowed to start, there is immense pressure for the number of movements to increase, to the detriment of the RAAF's operations and capability. Ultimately, that costs taxpayers big bucks. I can't see RPT operations being allowed at Pearce unless the whole training machine is moved elsewhere, but where to and who pays?