H ron
I am with Rik on this one Ref the kickstart
photos of the contract you are building to show the wider tool box / using a slightly adapted kick start to clear the toolbox would allow its use
agreed the earlier bikes with smaller brakes & those seen in tests / have the narrower box
the huge number of part numbers created by bsa especially pre war / wartime is something I now take with a pinch of salt - many replicated with tiny changes implemented- the tool box would be a big change
jo’b