He could send 10-20 odd Neo’s downunder with a matter of months.
And crewed by whom and on what AOC? Good luck getting CASA to allow a new type flown by noone with type experience. I highly doubt that anyone from Jetstar or QF are going to resign from there to help a start up operator.
To get that to work you would have to import labour, probably another bunch of expats, whilst all the redundant Virgin Pilots are in the dole queue which isn't a good look politically. Once you have some operational experience, then CASA might let you expand and hire non rated pilots.
The only 'quick' solution operationally will be with a 737NG, anything else will take years.