Here's another shop in Mascot Sydney, that is selling the same book new, but for slightly more than the Fishpond shop, (the price is quoted in US$), but if the Fishpond doesn't have it in stock, then A$103 isn't a bad alternative.
ABEBOOKS is always a good place to look for both new and 2nd-hand books, and some of the prices are amazingly cheap, even if you do have to wait for them to come from overseas, but it's generally not more than a week from US or UK/Europe.