Hi,
the guidescope is a cut down 50mm 200mmfl Lumicon finderscope. It is fitted with a cheap 1.25" flip mirror with a QHY5 guider. It is mounted on a losmandy V series adapter from Bintel for $49.00
Losmandy V-Series Adapter
https://www.bintelshop.com.au/Images/Stock/7823.jpg
I have attached several pics I think they are self explanatory but happy to answer any queries
cheers
Gary