I believe the newest Prius can be tough to get right now, so if that's the direction you want to go, I'd try to get a test drive with one to confirm that's what you want and order it now. Hopefully you can get one in your hands before you have to spend thousands for new tires and repairs on the Jeep.
That being said, if you don't want to wait and risk expensive repairs on the Jeep, perhaps a used Chevy Volt might be a less expensive alternative to the Prius? You could probably get a Gen 2 Volt with 53 miles of EV range and 43-45mpg with the ICE alone for about what you'd sell the Heep for.
Also worth considering, a lightly used Ford Maverick hybrid would have a powertrain nearly identical to the Prius, while retaining a bit of the ruggedness of the Jeep too. They tend to see 35-40mpg in a low buck trucklet with more utility than a Jeep or Prius.