Found the perfect fan, it was the one inside the power source from the computer. And I got done messing with different esc. The original one I was using was Novak crusher, good for rock crawlers. It was getting pretty hot, don't think it would hold up to much abuse and I don't know what Amp rating is but it can't be much.
Just so happens I had this one laying around , and it works with novac sensored motors. Just tested it on bench and all good, next is to stuff it in the belly of the beast. I figured if I'm showing the build might as well go through the growing pains of working on the electronics as well. I may lengthen the on/off switch and just use that for a kill button. Going to be adding other remote switches for lights etc,,