The Deuce is fixed! I MacGyver’d a solenoid wire extraction tool (spudger) from a left over metal floor joist brace. Once I was able to disconnect the wire from the solenoid, I was able to take a closer look at it and determine none of the copper wire strands had chaffed through, just the insulation. I coated the break with liquid electrical tape and wrapped the wire with real electrical tape. I then sealed the electrical tape with the liquid. It was a bear to re-attach it, but I finally got it. I also took a piece of fuel line hose about an inch and a half long and slit it along the longitudinal axis and affixed it to the rough, bottom flange of the oil tank. With this repair, the solenoid wire should never chafe through again. Many thanks to those that responded with “things to check” and advice.