a19593200,
If you are going to use the foot starter, the MAD solenoid won't work. The original foot starter has almost no wiring associated with it...two battery cables, and 'maybe' a small wire for coil voltage during start.
If MAD is as service oriented as has been hyped, they should supply complete wiring diagrams plus tech help if need.
Alan Hovarth provided a name and number for tech help...I would use it. Good luck.
Stuart