It looks like the circuits and switches are pretty close I see some things I'll comment on.
pretty standard here but no horn relay
Same here with the dome light the orange wire on GM fuse panel feeds the headlight switch for the dome main turn on. Is there a separate switch on the Mini.
The hazard switch LG/BR wire looks like the brown wire on GM hazard switch power wire
Is 36 the dome light? It looks to be with the door switches. The headlights operate off a relay 72 whereas the Gm don't use one. The wiring could be powered by the red wire in the GM harness and the dimmer could be wired by a separate blue wire from the light relay.
At first glance if 61 is the wiper switch It is positive switched not ground switched which would make the yellow wire from the GM harness splice into the switch at LG/O. What is 45 just above?
