So here are some updates!
I took apart some of the wiring today, and was disgusted with what I found. Isn't that's usually how it works?
At some point, someone tapped into the alternator charge wire for something, 1" of insulation was missing, so I cut the wire, and put a new connector. I rewired the blue field wire/ballast feed/voltage regulator input wire with new connectors, and new wires.
Low RPM charging stability has increased, though the needle still wiggles slightly.
Something on the IGN2 circuit shorted in the past, as the connector for the steering column had visible burn marks on the plastic, and the blue 12ga IGN2 wire had been removed from the connector, and run straight out to the engine compartment to the ballast.
I am pretty sure the starter relay is toast, the car has a pushbutton installed for the starter, and the key does nothing. I haven't checked for voltage from The switch to the relay yet, that's next on the list.
There are alot of overheated wires, and I will likely have to replace all of the 12ga wires on the vehicle side of the connector for the steering column.
The main feed wire from the terminal on the relay where it couples with the fusible link was corroded, dirty, and had a partially melted plastic housing. So, I chopped the plastic off the battery's side of the connector cleaned the terminal, chopped some of the plastic off the fusible link side, cleaned the receptacle and it it.back together. Suddenly, everything electrically operated on the car works better! 
I also hooked the defroster vent hose back up to the driver side. It had partially fallen off, and I was only getting a small portion of the airflow I should have been. Now that its reattached, my windshield actually defogs! 
Still have a laundry list of stuff to do. I've purchased a new oil pump gasket (so I can replace my current pump), oil pan gasket, and rear main seal.
Right now, I have a myriad of fluids in the crankcase with the idea in mind of cleaning all the gunk out of the engine. I have 4 quarts of 10w-30, 1/2 quart of ATF, and 1/2 quart of diesel. Oil is pretty thin when hot, but it should be cleaning the inside of that engine like no ones business.
I've replaced the thermostat, so now it runs at the proper temperatures too.
Still need a power steering pump (older federal pump), door hinge pins, weather stripping, put a gasket on the rear tailight lens (so it will quit filling with water). Also planned is to replace the entire rearend (bearing noise, I have a spare, and I don't want to screw with doing axle shafts right now, plus it will give me an excuse to bleed the brakes).
I need to set the camber on the front, it is whacked way off, where the tops of the tires are pointed inward quite a ways. I also need to get some 14" tires put on the front, those 13s are driving me nuts...
While I have the bottom of the engine apart, I am going to redo the manifold stack gasket, flat file the headpipe flange, and install a new manifold to head gasket. Going to swap in a better points dizzy (which I have) and that should smooth out the idle a bit.
Lots of work, so little money, even less good weather! I've gotten to the point of putting on rain gear, and going out if its less than pouring rain.
*sigh*
~RDE~
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