A bunch of members have gotten the Katzkin leather in an Laredo E. You will see prices vary pretty wildly. It seems, consensus is that the basic leather kit alone is about $800, and there are 2 higher grade kits that go up from there. My dealer sent out my vehicle to an automotive upholstery shop for the actual install. I was able to negotiate the upgrade as part of the purchase price.
See my thread here; Before and After Katzkin leather upgrade