The bunk is finished and painted. The wiring that will be covered by the paneling is installed. I reinstalled the outlet boxes on the sides of the caravan with a longer board so the center runner can be screwed into it making it much more solid. See pic. My wife covered the PVC panels with wall paper. The panels were $15 from Lowe's. They are relatively light weight and really give a solid feel to the walls. We let the wallpaper glue dry overnight. It was still not dry since the water can't soak into the panels. I think floor adhesive might work better but we did get the panels installed without too much trouble. Only time will tell if we have to re-do the wall paper. Next weekend I hope to install the air conditioner and finish the wiring.
[UPDATE: The water based glue on the wallpaper did not adhere to the PVC panels and will have to be re-done using another adhesive. It sure did look great for a day or two though]