No actual personal experience, but lots of reading. Seems that most folks recommend constructing a simple, "T" brace to place between the floor and the ceiling while you are renovating the closet and/or kitchen cabinets.
the inside. The rat fur in Scamps and the Carpet in Casitas serves several purposes, nice appearance is only one. They also add insulation, block light
so you don't become a glowing silhouette at night when the lights
are on, and, very importantly, they prevent severe condensation on chilly nights when your breathing inside the trailer will condense on the cold walls and ceiling.
I'm sure others with some first hand experience will chime in soon. Good luck with your renovation
Edit: Disregard part of the above if what you meant was that you were cleaning and painting
the foam insulation that is in your trailer. Sorry.