Dave, that's a great way to use that room! I don't have cats...have two dogs and I keep finding one of them sleeping under my desk in that room!
DH fabricated some slides for the pantry for me. The wine boxes had to have a small piece routered out of the bottom but they fit perfectly. Now when we winterize after our current trip, we'll just pull out the wine boxes and load them up in the truck to take to the house. I really really really like these slides!! Each slide can hold one wine box and one of the little plastic crates. He slanted them slightly downward toward the back of the pantry so that they would not put much pressure on the pantry doors during travel. I didn't want a slider on the bottom cabinet because that's where we put paper towels and extra soft drinks so I didn't think one was needed.
2015 Coachmen Chaparral 360 IBL
2014 Ram 3500 Turbo Diesel 6.7 4wd Crew Cab Dually