These are a special order unit from AP engineering, so I highly doubt somewhere like Autobarn is going to have one sitting on the shelf, let alone try and order one for you. Direct from AP they retain for around 110,000yen. I believe there has been a second hand one floating around on ebay(us) for 1000us.
Also a side thought... appart from them being supplied with a more powerful standard base map, and that they plug straight in... who will you get to tune such a thing in Tasmania?