as far as wiring, it doesnt matter if they are normally open or closed,,,, simply put your switch in and it will work one way and not the other,,, switch may say off, but its actually on. I would hang right there with either the ignition, kill switch, or even the tether area.
You could get really creative and tie into your bright dim switch and make it serve 2 functions,,,, as the sled is off, your brights have to be on to start the sled. You would have to put in a relay so that it bypass's that circuit when the sled is running though, because if you didnt, everytime you turned your brights on, the sled would die LOL..... lots of options out there.
09 1200 Renegade
10 1200X Renegade
78 Invader 440