Cool beans. Can't wait to hear how it works out. I wired my "Black Magic" fan on my toyota directly to the battery using heavy gauge stranded wire and crimped/soldered lugs. So the inrush current at fan startup is not a problem. It has the single speed on or off controller. Running it now for 5 years and no problems.

ToyHooter
90 LWB Montero
Sliders, Dual Bouncies, K&N, Flowmaster, Rancho Stabalizer, KYB Gas Adjusts,
ARB Compressor Under Hood, ARB Locker Waiting Garage Floor, Spare Tire Bike/CB Ant Mount

"I didn't do it, you didn't see me, you can't prove it."
Bart Simpson