Well the roof sheets are on and it's time to measure up for the steel section of the pier. Easiest way.... drag the G11 in there and see how much extra height I need and still get under the sliding roof.
I know I could lay the RA axis flat to close the roof and go for a high pier so the OTAs clear the tops of the walls, but it's not really needed. At the max height of the tripod now I should be able to get 1.5 hours of M31. That's about as low as I would want to go anyway so if I make the final height of the pier so the scopes clear the roof perlins by 25mm then I'll be laughing.
The end result is I need a section of steel pier around 400mm long. That will put the bottom of the G11 at 1250 mm above floor height. At this height I can look through the 8" sct with guidescope on top and only need a single step stool to reach the guidescope.