Well, for everyone's benefit I'll post an update here. I'm sure Chip will see it
. Chip I put your reworked switch on today and it works great! I now have a horn and a high and low beam! The brake pedal was indeed the wrong one. Picture of the two below. The black one is mine, the chrome is correct. Maybe mine is from a 160? Not sure.
Now the last thing to get working is the neutral light. It doesn't come on in neutral. The cam is adjusted correctly in the motor and shows continuity in neutral and loses continuity in any other gear. It blinks when I switch from pos III to II. Basically it blinks when I switch off. It also lights dimly when the horn is pressed. Not sure what's going on here. Any idea chip? The wires are plugged correctly green with red stripe to light, black with white pipe on the end to black with white pipe from the switch.