Revisiting this whole electric fan setup. This time im going with a fan for a 2004-2007 Ford Freestar, which is damn near the perfect size for the stock radiator. Dorman #620-144.
I had to notch the shroud around the inlet/outlet a bit to get it to sit down on the end caps, and then made backets top/bottom that bolt to factory holes in the radiator. Then used some removable body push pins from some cheap assortment i bought on Amazon, to hold the fan to the brackets. Works well!