Most of the "mysteries" that I found with my car were due to changes in the wiring colors during production, my inability to see the wiring colors due to location or lack of lighting, and the installation of newer parts (which were well deserved) where I did not have the documentation. When all is set set and done, I conclude that my car was well maintained and is mostly original with the appropriate upgrades and replacements for a car of its age, and is behaving as per original specs if not better.

Nevertheless, the obsessive compulsive nature that I have (most DeLorean owners have this affliction) will show itself from time to time and end up as posts here. Thanks to everyone for answering my questions.