Understanding the 80-83 wiring diagram

[sonofnun]

So I'm trying to help my father sort out one small issue. He's pretty mechanically and electrically inclined but he can't quite sort out the wiring for the main solenoid. The overall diagram is a little too fuzzy and the solenoid diagram doesn't have every detail. We know all the solenoids are connected in series, so there will be a wire from the left post of the 1st speed solenoid to the left post of the main solenoid and obviously the center post is connected to the motor. However, there are wires that run from the main solenoid to the F&R limit switch and wires that run to the speed switch limit switches. Where to they connect on the main solenoid? If anyone has any experience with this or can sort out the diagrams better, we could use some assistance.