And following APT suggestion, I really miss my 2500 Yukon XL, but do not miss the fuel cost when empty.
I know it is not cool, but it is functional and a great value, you could go with a full-size 2500 or 3500 van. They are not available in 4wd, but I have not had an issue with mine. You just have to remember where the rear wheels are, and that their is no switch to get help.
With four daughters and two dogs, my Express has made up for missing my Yukon XL. The crew cab truck with a cap was never fun, and when the daughters were taking the dogs to the 4-H shows or competitions, they did not want them riding in the hot/cold bed of the truck. The van solves the heat/AC issue.
Also, if you get the 12 passenger, you can always take family and friends and have more fun.