if it helps, i'll try to decipher what went where:
the most important thing to note, now that i confused myself for awhile, is that the paper diagram is backward - that is, i sketched out the fwd/rev switch as it was upside down - so the x in a circle at the bottom is the engagement lever - what shows to the left of it on the piece of paper is actually to the right of it when it is mounted
so for example, in this photo:
the green wire that was part of the 12/4 cord that ran between the switch and the motor (i.e., being held in my hand) is attached to one of the red wires on the motor
per the piece of paper:
the other end of that wire goes on the first terminal in from the rev/fwd lever on the LEFT side - BUT, once the switch is installed, it would then be on the RIGHT side - clear as mud?
if anything else is unclear please let me know
note that one black wire is used to bring around the middle left (as oriented on the paper) to the other side - that wire does not originate in the incoming wire or the wire to the motor, it just bridges the two sides (just below the scratch out)