Four years now and still in its packaging, I don't think I'll be building that scope after all. Moving on to new hobbies now.
Mirror cell is in new condition as I received it from Astrosystems, was never mounted in a scope. Original instruction sheets included. Much better images available via email on request.
Cell is constructed of two layered sheets of 12-ply maple (~1.5" thick total), with three adjustable 3-point supports with wingnuts for collimation in counter-bores at the back of the cell. Nylon web sling for off-vertical support.
Very nicely made system with clean flat-black finish on all upper surfaces.
Asking price is $150, plus whatever it costs for your preferred means of shipping. I'll ensure excellent packing.
Thanks for looking.
-- Dan --