Nursing is available through OUA. It's run through UniSA, and I know that you have to be able to go to South Australia to do a couple of weeks pracs if you do the whole thing through them, but I'm sure you could do a couple of the foundation courses online to prove yourself, and then use those to get into the uni near you to finish the rest. Otherwise you could do an RN diploma through your closest tafe and use that to get in, or you'd have to sit a mature age STAT exam.