Whatever line of work you choose to follow, unfortunately you need to obtain your RN, and make sure it is recognised in Australia. Check our immigration site. Unless you choose to do your EN here in Australia. Like ENs in the US, LVN qualifications are not recognised here. That stinks, I know
Once you are an RN though, you should be able to do home nursing in the private health sector, visiting ppls homes to provide care. Or you can go to doctors surgeries. You may still need to have some hospital experience though depending on the organisation you choose to apply with, and the state you wish to work in.
Best of luck
Jay