I ordered the wheels today. While I'd like to have supported the Aussie distributor or a shop out here I ended up buying them off eBay USA for an absolute STEAL.
VN504 1-piece cast 17x7, 5x5 PCD in 4in backspace. I could have gone for the 2-piece forged VN402 but I don't think I need that kind of hardware, plus the VN402s aren't available in a 17x7 in 5x5 (you have to get a blank to drill).
Locally, the one shop who was prepared to give me a price wanted $2600 AUD and for me to wait 10 weeks for the wheels. The eBay shop had them in stock and, all up, it came to $USD705 delivered - amazingly, freight from the USA was $USD40 for the SET of wheels! Once they are here i will get the centres done in a goldy bronze.