How about a drive 3 hours north? Hate to say it but I think this is what you will be up against. There is a guy around Penrith with lots of junk.
If you PM me I will give you his details. I tracked him down from Ebay and went for a drive to see what he had. He had some old cab's and lot of spares lying around (all undercover).
If you are not looking to scratch build, he would have some starting options. Better add $100 for the budget hire van & petrol......