could somebody say something about the Living Away From Home Allowance (LAFHA)? Would it be possible to negotiate this in "fixed term" contracts from universities? (or until you apply for a PR).
Yes (or it used to be possible - not sure whether this changed in the last budget?) You have to meet certain criteria, essentially proving that your permanent "home" is not Australia. Ask HR - I don't think you have to negotiate it in your contract, they will give it to you if you are eligible. I don't think it matters to the university, since they still pay you the same amount - but you pay less tax, so you get more take home pay.