Having tried and fitted the various components of the dome in the workshop certain parts e.g. the shutter windows and corner roof sections were dismantled and carried up to roof level for finishing and their final reassembly.
The marine plywood that would form the walls of the square chamber beneath the dome and the door were also cut to the right size and shifted up to my ‘store’ in the roof washroom. These would be treated and prepared for mounting when the chamber and door frames would be reassembled.
This lightened somewhat the load to aid with the eventual lifting of the dome to the roof and released, admittedly marginally, some of the garage usable footprint!
All this also provided a certain degree of psychological relief.. a sort of early landmark that there was light at the end of the tunnel..:)