I don't have access to redraw the layouts at the moment, but I think this will work.
Remove trimmer
Remove Output wire from Row 1
Add link form Row 2, column 5 to Row 1, Column 3
Add cut Row 2, Column 3 (,or 4)
Reinstall trimmer 180 degrees (so middle lug is closer to board edge)
Connect output wire to Row 2
That should do it, but trimmer will work in reverse.
I will correct the layouts later today.
1978 Gibson Les Paul Standard, Cherry Sunburst