Rolff
I did away with the folding curtains because it just didn't feel like you had any privacy for the bathroom, aside from dirt and musty smell of old fabric.
I measured the size of each section and i wanted it to be simple and very light, each of the 3 section has a simple frame made from 3/4" pine wood, sandwitched between thinnest sheet of paneling wood,they come in sheets of 4x8. the setup and removal is done in less than 1 min, I believe it is held by 4 bolts and wing nuts. when I am traveling I either put it on top of the couch or just lay it in the bathroom floor.
the hardest part was trying to find a place that sells wall paper, I looked up a bout 5 places and when i got there they were gone (nobody must be using wall paper any more), the last place I got to had a huge selection of colors and patterns, I chose one that is easy to clean, no repeating patterns and they come in a large roll, each roll covers 50 square feet, I got 2 rolls and that was enough.
I believe anyone can update the look of their Rv with simple projects and take your time to do it.