Well the Dumas Kit in the United States runs for $435 brand new and can be ordered direct from the company.
I suppose shipping to Australia might make up for the
extra $565 cost. Even with exchage rate the kit seems to
run only about $632 AUD. I wonder if import duties add that much?
http://www.dumasproducts.com/cgi-bin/dumas.storefront/3f88385806493a00271d40d4096805bf/Product/View/1235
See boats kits, scale boats, page two, if the link does not take you there directly