If you have to build your own beadlocks it’s much easier to have a spare set of 4. Otherwise you need a second vehicle so you can put it on blocks and take all the tires in. Or risk destroying your stock wheels by doing it at home. I did that on my Rubicon and regret it.Wheel sensors are hard to find right now for current (post June 21) JL's.
Why wouldn't you reuse the ones you have?
KevinC