All it takes is money. They are ridiculously overpriced at $930.00 per corner. Thats right, nearly 4 grand for all four corners. Go to a body shop and get them done as a one off and you will come out ahead on the price.
Check this link from the Aussie forum for more info:
I will be Australia next month and plan to look around to see if I can find a set for myself. I might be able to get them from an Aussie wrecking yard but I'm sure shipping them back to the US will be outrageous as well.
[edit]
just noticed that you posted to that thread and a member in Melborn offered to set you up with a parts dealer - did you contact them or are you just hoping to find them cheaper?