In my diligent research, I just came across another tidbit of information.
The knob has a continuous indicator line running down it. The previous best guess on the correct knob has segmented indicator lines. View attachment 678463
Now that it's obvious this is dead, what are your thoughts on the remotes that Doc's Propshop makes? I follow him on Facebook and he churns out tons of remotes in 3 different price points. At least it's nice to know there are other options out there.
Search for Stanley readoutdisplays on shapeways. Not a full item but at least you have the displays, you will need some arts and crafts work and getting to build the front lens... but hey. its something