Better live with another family to start with.

Check Chinese paper or Sydney Morning Herald for room to let. There are plenty available. After a few months she can find a better suitable place.

Bondi, Chatswood are expensive, Hurstville/Ashfield area are more affordable. It is all depends on your situation. I don't think there are too much problems in Chinese living area as long as it is not in Middle East people area.

Once got a job and settle down, all should be fine.

Good luck.