Rick, looks like a number of problems. about the only thing I see that can be common are the groung circuits at W1 located on the righ footwell. This is the gound for Hazard Flasher, Insterument cluster, dome lights, and other stuff.

On the head light, if your left high beam works the dimming switch is good.

I suggest that you check Fuze 17 and pin 3 and 4 of the Lamp monitor unit N7. If you have 12V at Pin 3 and no voltage on pin 4 , N7 is bad. If you have 12V on pin 4 check pin 3 of the high beam plug if you have 12V check the ground. If you have 12v from pin 3 to ground the lamp is bad.
I hope this is helpful

dave
86 560SL

__________________
Dave