I poked around in my PC files and found a few scans from my working notebook - from 2001. I will ask Swim for his opinion on sharing one or more images.
Back then I wasn't too concerned with "accuracy" or making them pretty, and most times I completed the upgrades from memory. I didn't start with a lot of experience. Later, I looked for ways to standardize the wire colors, trace routing, etc. Some of my notes contained intentional errors in event the information was shared without my knowledge. This was important to protect intellectual property, particularly after someone stole a few things from me at one of the TI Faire gatherings.
(For what its worth the chips are hard to come by and the programmers we've tried won't properly program the chips, so neither swim nor I have had much reason to pursue new installations. A shame, really. )