Right where the coil wires pass through the side of the dust cap over the plugs and coils, they are encased in the rubber insulator that fits along the edge. That's where I found the breach. As I dug into it a bit, I saw exposed copper wire. I took a utility knife and cut back towards the wiring harness to reach the end of the exposed wire.
Uh oh... So far, I've cut back around the back of the head, and still no end in site to the burned cracked insulation around ALL the individual wires. Going the other way, I've slit open the rubber housing and found the green oxidation eating its way throughout.

I've run out of electrical tape! I had to shore up the big bundle, or it would have crumbled under the handling. I can't imagine how it was running at all. Only due to being encased so tightly in the friction tape.

The challenge will be in seeing if I can get it to run long enough to get me to work for a couple of days. It doesn't look good.

Thanks for the help.