I know it is not local to Australia, but check out Createspace by Amazon. You can produce your book, and print it in quantities when they sell rather than paying up front for a huge run. They may even have plants in Australia.
I have not done anything there for a couple years, but I think the way it works is you create your book in their system, with the art and all, then once you believe it is complete, you pay them to print you a proof copy. Once you approve the proof, then the book is available on Amazon, and you have the option to offer it on Kindle. They pay you for each copy sold, You can certainly also order a number of copies for yourself to place in bookstores or to sell locally.
They also can help by marketing your book both on Amazon.com and Kindle.
While the profit on each book may be small, perhaps your out of pocket costs would be lower.