I have the skid plate pkg also, but that really doesn't cost you any clearance issue. The big muffler is the worse design to go under an off road vehicle Jeep could have mounted below. That sucker is a monster just looking to get hung up on something.
I was also looking at adding the JBA lift. I will increase you approach and departure angles, but it will not provide any additional ground clearance with out going with a larger diameter tire.
I would still like to have the JBA for the difference in the ride of the vehicle it offers, but adding a $2K aftermarket suspension to a vehicle with a poor resale history just doesn't add up.
I know it may sound like I am being negative towards the Libery, but it is not intended to sound that way. I appreciate my KK, it will do what I purchased it for on an everyday basis. I am not sorry for buying it, I enjoy driving it. However, I do wish the vehicle was more popular, resulting in a better aftermarket for accessories and at more reasonable prices.
"If you have a difficult job to do....Give it to a lazy man....He'll find the easy way to do it."