First off we managed to carefully clean out almost 70 years of gunk and lubricate the switch back into a functioning selector switch. The next stage was working out where the wires needed to be reattached, easier said than done when there was no reference schematics.
As we had to figure out a large part of the wiring referring to old photos of the wiring from owners groups, we only feel it right to share clear detailed photos of correct wiring for anyone else who has to repair the wiring in their Watkins Rapier 44!