I mentioned two engine ferry when I started the thread, it's a valuable consideration. Not that it would be an everyday occurring event, EFATO off runway 34 at Canberra, night departure out of Port Moresby, Fiji, to name a few; two remaining engines would be comfortable. Two engine ferry a good option.
The maintenance etc, awarded to Northrop Grumman Australia; ? why change a good thing? successful company, procedures, security checked staff.
Maintaining the FA7X, and BBJ's at Canberra, but where is the RAAF fleet of B737 Wedgetail and B737 Poseidon maintained. Are these done by QF in Australia or farmed out to a off shore MRO?
Who will be maintaining the Gulfstream G550 spy planes when they arrive?