OMG, how stressful for her. I am glad she has you to talk to about it.
Her only other option is to go public... and you guessed it, have the same OB she is seeing now as a private patient.
But does she have to see an OB at all? Is she high risk?
If she goes public it may not be through a special midwife program, but they have to take her and she would likely be seeing the midwives for most of the appointments (unless there is a problem, or unless the Darwin public hospital system is radically different to Sydney's...)