Brief update on the project. I've had a few other threads to address some of the electrical problems I've been fighting. Thanks to help from this forum and some of my local friends and resources, I was able to solve the biggest of the electrical issues:
Blinking red light on the dash issue resolved by pulling the bulb.
Other electrical issues related to flasher relay resolved by removing a bad bulb socket.
Headlight relay replaced.
Tail light wiring addressed.
Learned that it is important to not screw through the main harness running through the center of the car when mounting the arm rest.
Once the electrical was repaired, I put the car back together. Some upgrades included new window cranks, a new steering wheel and repairing the exterior door handles so they work.
Fired up the car and took it for a drive last weekend. Was happy until I stopped and got out and saw the oil leak.
Turns out one of the push tube seals was leaking. So I pulled the motor and trans to address.
As long as I had the motor out a second time, I decided to do some serious cleaning and detailing. Yesterday was clean and paint day.