Electric Water Pump info please

You'll only be transferring the load to the alternator, it still requires energy to run the pump. Consult the pump manufacturer about the life expectancy if you plan to run continuous.

As for the 2 fans, why? You say you will be doing a lot of high speed running. With a 60+ MPH breeze coming through the radiator the fans aren't needed In fact, they will be a resistance to airflow. Id run the smallest fan I could get away with without overheating at idle. Or no fan at all if I didn't have to deal with stop and go traffic, and was only going fast. NASCAR cars don't have fans.