I've been traveling and camping with my whippets & greyhound for several years. They usually travel in crates in my SUV. My FIRST order of business when getting to a campsite is to set up their pen. I purchased 10 (3'x4') panels and set them up in a number of configurations. Since my purchase, I've done away with the panel attach fasteners and now just use zip-ties exclusively.... very fast setup and breakdown. Anyway, once the pen is in place I can put the dogs inside with water and beds so I can go about my parking and setup while they relax. And that helps me to relax. I don't have to worry about them getting hot in the truck or standing up and blocking my view while parking, etc. Here's a link to my setup: http://www.airforums.com/forums/f239...run-54736.html
I also have a center gaucho that I typically leave in the partially extending position so that they can recline there while inside. Keeps them out from under my feet.
I have tried a number of ways to carry their food but I always resort back to 1-gallon freezer bags. I can fit them just about anywhere.
I'd really like to add a wall mounted bowl holder, something like this: https://www.nelsonmfg.com/dog-feeders/1400/
Good luck - traveling with the pups makes every trip so much better! IMO.