440 Dart cooling fan & shroud

There are a few places that make dual fans... Spal makes very good fans but I'm not sure about a dual assembly. What I meant by upgrade the wiring is if they call for 14ga, use 10... And run the power straight off the battery to the load supply side of the relay. I use a switch from TPI Specialties. It closes at 215 and opens at 185. Then there's no toggling a switch and it's a cleaner install. One hole in the water pump housing and a single wire vs the thermocouple and the rotary switch in view.