Would it be possible to play all Australia's games in different capital cities? Would be a bit of a risk but could really help grow the Kangaroos brand.
Maybe something like:
Australia V England - MCG/Eitihad, Melbourne
Pool Game 2 - NiB Stadium, Perth
Pool Game 3 - Hindmarsh Stadium, Adelaide
QF - GIO Stadium, Canberra
SF - Allianz Stadium, Sydney
Final - Suncorp Stadium, Brisbane
Of course they may not make the Final (or Semi or Quarters:sarcasm
but that's life if so, getting the final will always be a risk that the "home" team won't make it. Honestly I'd like to think the final could be sold out weeks, hopefully months in advance.
Maybe substitute Adelaide with Darwin or Hobart depending on who fronts the most $$.