I'll tell you right now, you're going to need two people, a lift and a tall screw jack is highly recommended. There were points during the install where I was leveraging the transfer case skid in two different directions to get things lined-up. And getting some of the hardware in place can be challenging.
Also, I suggest you go ahead and change your trans fluid and filter first, because you're not going to want to be taking them off anytime soon. Might as well do the transfer case while you're at it, although you can get to the drain and fill plugs after the skid is on.
When it's all done you'll love the kit. Getting there is just a bit challenging.
I'm a JKO Reject