Great progress and heartening to see someone building in a similar sized garage to me. I'm interested in the suggestion that you screw the chassis to the build table to keep it flat and prevent distortion. That was my plan but I am sure someone warned off doing that in case it masked distortion which only then became apparent once the chassis was unscrewed. As the consensus on here seems to be that that is not the case, I'll follow your lead.
I look forward to seeing your build progress.
Total spent: £0
Achieving an ambition