My walls have a lot of small bumps and holes. I would like to cover it with wallpaper and then paint the wallpaper. Some online researching showed me ''fiberglass wallpaper'' and '' renovation fleece wallpaper''. Is this the type that i need? Which one is better? Thank you!

My in-laws just purchased a new build with an unfinished basement. I will be doing the majority of finishing the basement myself as I've recently done my own. Due go building code, the builder drywalled the entire basement ceiling. Bringing new drywall into the basement is going to be an absolute pain with the stair/door setup. My question is: can this drywall be taken down and rehung? I'd obviously be smart taking it down but I'm wondering if it ruin the integrity of it. Would I use the same screw holes or better to make new? Yes I'm aware drywall is fairly cheap and they'd have no problem just getting new but that means discarding of the old and 50 more sheets to bring downstairs. I'm also aware of the possibility or more work for the mud guy. I discarded all of the ceiling drywall I took down in my basement but it was a damn pain. Thoughts?