Started on my Grand Lizard I picked up last November, finally. Working on the boards and waiting on parts so I thought let's look at the underside of the playfield closer. Probably 50 or more wires chewed though. Looking more at it, I found someone had twisted maybe 10 wires back together and on the main harness had started to solder and heat shrink 40 or more wires.
Lesson to be learned here. Check the machines closer before buying them.