Deposit - 20% = $90k
So if I save up $90k, I can put it all on a house, but I'd be left with nothing!
For the amount of shit they put up with, surely that would be the low end of the income scale. Tell her to register an ABN, give her boss the finger (Or 2 depending on what way she swings (film it if she swings the last way)) and start up her own buisness.
She's already got an ABN, just not enough resources to start up her own business - yet.
Probably will happen in the future sometime.