As I was interested in what the asking prices would be for the locomotives I sent off an email to Aurizon.
This is the reply. In regards to your enquiry regarding the purchase of Aurizon locomotives,
Aurizon is currently running a tender process for the sale of 25 locomotives in Western Australia, the tender process has been issued to registered buyers and closes on the 18th
December 2013 and in line with the organisations direction for rollingstock disposal.
Pricing details in relation to the locomotives is not available.
Looks like the days of privately buying locomotives for preservation is over guys.