[Doomsayer]

thanks Lester.
The dropside was Brett's idea and design. The scope sits a few cm proud of the tops of the walls - so some sort of gap or flap was unavoidable.

I might yet add a motorised pier, since the roof obscures the lower east sky quite a bit, as you can see in the additional pic. Or perhaps some lengthening the roof drive rail. We'll see.

guy