Can you either paint or wallpaper the sheets of panels in a mobile hom

You can do both. I live in an older mobile myself and have painted every room in the home. I used TSP w/warm water to wash all the walls first, then primed with Kilz2 (2 coats), then painted with interior wall paint in a satin finish. Depending on the color of the paneling or wallpaper you may only need one good coat of primer to eliminate the possibility of 'bleed through' after you apply your paint. Don't forget to fill all those darn staple holes before you begin. They will show up and drive you nuts if you don't. I'm still using spackle Best of luck.

Yes, you can do either. If you paint, just prime it first with Kilz and then paint.

You can do either..I would just put filler over seams before wallpapering

http://mobilehomeliving.org/how-to-update-vinyl-coated-drywall-in-mobile-homes/

Yes.. I live in a mobile home and have painted, sponge painted, wallpapered, stenciled and done about everything else because I love to try new techniques and looks much to hubbys dismay at times 🤓

Your prep will determine your outcome. Use wood filler or spackle to fill any holes, seams, etc. after cleaning the paneling. If it has a shine to it you might want to sand lightly. Use a sealer like Kilz, and paint or paper to your taste.

Of course!!! My friend painted and sponged and did all kinds of cool stuff to hers. Looked awesome!