From what you've said, it sounds like you've not received good advice.
If you're an Australian citizen, doing your flying training in Australia, and looking at initial employment in Australia, then why would you be doing a JAA integrated ATPL?
Both Ab33t and Blown Seal raise excellent points.
If you're going to work in Australia for your first 1000 hours or so, then do what is required to reach that goal, rather than spending the time and money getting a qualification that wont allow you to get work here until you then do yet more training (conversion).
While it's good to have long term goals, you should also realise that your flying career is a journey in itself. Once you have 1000 hours you may have different ambitions.
DIVOSH!