Just to pitch in my 2 cents...
If I were you (and I was some time ago, with a broken fan shroud!) I'd just go to the neares U-Pick junkyard, and pick myself a two speed fan (this is the one with the 3 wires) from a 90's (mine was a '96) Ford Taurus V6 complete with shroud. Mine was $30.
With a little modifying, the fan shroud will fit the Jeep (you only need to modify one side; on the other, the screw position matches!) and use a 3 position switch with 2 sets of relays to run the e-fan (that way, you can run it on Hi, Low, or Off). In my case, I went a bit further, as I installed a speed controller, that increases the fan speed as temp goes up, and turns it off if the temp is right, and turns it on to a moderate speed if the A/C is on, and I have that as an option. So I can put the fan in Auto, ON (using a separate set of relays, in case the auto ever fails), or OFF (if I am to cross a river I can turn it off so its not sucked into the rad, or if I am driving long distances at highway speeds, I can turn it off even if the A/C is on for better mileage), and I am happy with the results.
Taking the fan of the mechanical side of the engine will free up some desperately needed ponies under the hood!
Felipe