Don't buy a 777or A330 for scruffy pollies.
Overseas trips are a small part of requirement.
When they need an aircraft to fly PM on overseas trip, with Canberra Press corp hanging on, charter an A340. Use same charter company, aircraft and crews we get now to do trooping flight for ADF. If the chartered A340 we use for those trooping flights is good and safe enough for ADF members on overseas flights, it is good enough for our polie vultures including the various PM's we have had.
I bet the PM would suddenly find a reason to get a first world airline to do ADF trooping charters.