On ebay, it can be found as follows:

www.motors.ebay.com

then click on "Aviation" under Parts and Accessories on the left side.
It is the second item on the page. (The URL is REALLY long.)


In addition to the Sportys catalogue (of which I receive two a month)
it is online at:

http://www.sportys.com/acb/showdetl....oduct_ID=10044