Steve,
You beat me to it, I keep promising to drive down to Jaycar and get one, but now I don't have to
Actually, I've been picking up a few prototype bits and pieces off Ebay HKG, such as 12V motor/gearboxes, motor PWM controllers, TEC coolers, etc, so as the discussion moves on, we can start to look at what we want to initially focus on. Pun intended
I also got my Ebay HKG Pentax to EOS adaptor today, so am going out to do some widefield trials with my old Takumar 50 and 135mm lenses in a minute.
Cheers.