Guys, I ended up buying a new part, but I was at least pleased I found it delivered to my local autozone. Part no 0005456004 is available for about $110, non- MB part. The part looks identical to the MB part. Pick n pull would have been cheaper, but I ran out of time. The next time I'm a the junk yard I'll pull an extra one.
The only thing that was tricky in replacing the switch was the amount of pressure it took to get the knob pulled off. I used some rags and big set of pliers...probably took 50lbs of pull to get the thing off...really made me nervous I would crush the knob. All worked out though.
New switch has a very satisfying crispness and operates the various lighting settings perfectly.