Mj w/ interior cage

I was wondering if anyone built or has plans to build an interior cage in a MJ. Any information would be great ex. cost, amount of tubing, instructions, pics, etc.

I'm just starting to build one.I havent done any tube work so I dont have any info for you about that.I should measure it up this week.I'll let you know.I'm cutting the frame off at the cab and putting a 4 link with Fox Airshox in the back with a tube frame.I'm using my front suspension and both axles from my XJ.