When I bought my CJ ten years ago, it was bone stock other than shackles, fuel injection, 33's and a missing front drive shaft. At that time it was 18 years old, but extremely clean. If it had been wheeled you couldn't tell. The skid plate looked untouched and the body was pristine.
I brought it home and drove it one time, then it went into the shop for a Warn link suspension, NV4500, D44 front and D60 rear. Over the years it's gone through several major changes and revisions, but the basic drive train and overall dimensions stayed about the same.
This last build changed all that.
YouTube - CJ Metamorphosis