A quick update,
I was able to swap out the ground strap behind the alternator from the fan casing to the engine casing (It was beyond its useful life, image below). I also went ahead and replaced the battery. The car now cranks and fires right up! With the car running it still is not charging the battery. I suspect the culprit is the resistor per the Tech Bulletin. Can someone explain in plain language how a light inhibits the alternator from charging the battery, how the resistor will fix that issue, and how to wire it in? I have attached images of the part I ordered Per the Tech Bulletin as well as a picture of the back of the gague.
