David,
Their is another Anssen Technologies mount also appropriate to that scope and its smaller and cheaper than the Atika mount. It is called the Alhena mount but there is no link to it from the homepage you provided. Here is the full link to the Alhena mount
http://www.anssentechnologies.com.au/alhena.html
I was actually going to give Mick this link tomorrow with some futher information regarding 2 other suitable mounts, the Takahashi EM500 and the Software Bisque Paramount ME.
CS-John Bambury