So once the main assembly had been made and the joins strengthened with fibreglass , timber and steel bands around the top edges the dome was finally put on and a much needed coating of black paint. Now just to finish floor levelling, floor sealing, wiring , lighting, the cupboard, soft flooring  to absorb foot traffic ad then all finished ……errr apart from the small matter of mounting the telescope and everything else …. so several months more work then