Yes, I read all of your threads regarding your Jeep and it helped me diagnose my issue. Turns out I have the same problem on the came cylinder as you at nearly the same mileage. 88,000 on crate motor. My lifter wasnt worn out like yours was, but mine was collapsing. I pulled the lifter apart to see what went bad inside and the inside of the bottom of the main lifter barrel had a really strange wear pattern to it and the bottom of the spring was just about worn through. Im going to pull the rest of the lifters today and start checking cam lobes to see if a cam replacement is needed.
Im looking at the CompCams X4250H. It says its a great stock replacement but in the notes on the specs page, it says that stock valve springs cannot be used.