I've been working on this one for a while. I started with a regular old Model M 1391401 and vinyl dyed the top and bottom cases a satin black several years ago. (It took a really long time - weeks, maybe months - for the case to stop smelling like organic compounds, the vinyl dye had some solvents that took a really long time to settle.)
Maybe a year and a half ago I ordered black Unicomp keys for the board. At the time I did not realize that I would need new stabilizers (black ones) for the numeric keypad '+' and "Enter" keys. I tried to drill out an existing spare stabilizer. Instead I went through the membrane and destroyed a trace. The membrane is certainly repairable with some silver paste but this just delayed things further.
Well, I finally got a chance to do a full bolt mod to the keyboard and replace the membrane with a spare. The old, damaged membrane will go toward my homebrew Model M SSK project. I've seen another mod where someone just folded the existing membrane into the keyboard case. That just seems wrong to me so I'd like to use silver paste to make a "proper" membrane that I can then cut short.
Finally, I decided that I wanted front mounted legends on the keys. I don't have access to screen printing equipment or anything of the sort. So, I just purchased a set of key labels through Amazon, cut them to size, and painstakingly applied them to every single key. I wonder if Unicomp would ever sell front-printed keys, and/or if I could find another manufacturer to do front screen printing?
Anyway, here is the result. Forgive the low quality photos; it has been a long weekend.