I did wagoneer springs on the front and cherokee springs on the rear.
The front was pretty straight forward. The shocks will mount to the spring plates if the length works. The front shackles will be at a little more of an angle but it's not an issue. Brake lines would be nice. The front driveline will need extended. (I did do a belly up kit at the same time and I think that contributed to the shortness of the drivelines).
Other than that everything else is normal. Steering is going to be steep, there's a few things you can do to that, the high steer knuckle is the best option but I'm opting not to but a dime into that turd of an axle.
To make my jeep sit fairly level I swaped a leaf from the wagoneer pack to the cherokee pack. In the rear, you have to extend the drive line, new brake line, and either relocate the fuel tank or put in a fuel cell. You can mount shocks to the old upper mounts but it calls for a long shock and it sits at a funky angle. It's worked for me though as a temporary fix. I welded new tabs at the bottom.
For the cherokee springs I had to make a new bumper and incorperate the shackle mounts to it. plus I had to cut a good amount out of the fenders. I got a set of pocket flares to cover this since.