Dont waste your time. Once you've got all the qual's just go flying and try and benefit from the apparrent movement in the GA industry.
VB couldn't care less if you've worked for them before and even if they did, you'd be turning 60 before you gained the required experience doing an hour or two a week on your days off.
There plenty of other (arguably much better) airline jobs in and out of AUS aswell.
Good luck