I see
https://www.bintelshop.com.au/welcome.htm advertise the SB mounts:
Software Bisque Paramount ME
$17,150.00
Software Bisque Paramount MX
$10,200.00
The AUD buy price from Opt Corp is of course $13,351 and $7,944 so its always annoying to see the mark ups buying locally inflicts on one. Guess its the distributor, insurance, freight and tax differentials.