Thanks for the advice. Are you saying that I could add a separate kill switch/button that would cut off battery power to the coil? I assume relays are required to avoid the switch having to take the current load of the fans. Also the fuses can be in line rather than in a fuse block. I was hoping the light switches would take the current load of the lights which should be low since I will be using LED's.
I am also considering the non-Luddite move of going TBI via a Holley system (with computer) for about $1000. This should act better for off-road use, or so I believe.