You could install a modified version of the 05+ truck e-fans and have your pcm flashed to control it if you wanted. But would probably need to just use the higher flowing of the 2 fans since the space for a radiator in a tj is so much smaller. Lots of how to's out there for that setup and it's extremely cheap to do in 99-04 silverados. Should be easy in a tj with a gm pcm and a wiring diagram
It was a lot of fun! 69 Olds 442 convertible. Bought it with a blown up 400, dropped in a low mileage 455 ambulance engine. THM 400 with a kit. It could boil the back tires easy, would chirp from 1st to 2nd with 60's. It had been re-painted silver and black when I bought it but was originally yellow and black. I painted it pearl white and put on a white top.
Used to tow a ski boat up the mountains between Tucson and Roosevelt Lake and Apache Lake. With 10.5 : 1 compression and 100F plus temps I couldn't get good enough fuel all the time and she would ping bad if I got into it too hard. The Meth injection solved that but went thru a lot.
I accumulated so many points I almost got my license taken away with that car but somehow I lucked out and the judge used to live on the same street I did and all he wanted to talk about was the good old days on that street before I was born, then he let me off with a warning.
Here's what mine would have looked like from the factory except mine wasn't a W30 edition which gave you ram air, more HP and the red highlights..