Texturing plaster walls that have been wallpapered & painted over
We recently purchased a home built in 1910 that we'll be renovating and putting back on the market. Every room in the house has wallpaper on the walls that has been painted over numerous times. Even on the ceilings in most rooms. The wallpaper seams, though not obvious throughout at first glance, are pretty noticeable in some areas once you start looking a bit closer. We are trying to find a less expensive alternative to installing drywall on top or mudding all the walls and ceilings. Due to the amount of time we'll be dedicating to the overall project, removing all the wallpaper will not be an option.
Has anyone used a wall texture product in this scenario? There are different terms depending on the look you want -- orange peel, knock down, or acoustic. If so, how successful was it and would you recommend it to make wallpaper seams less noticeable?
We are looking at purchasing a sprayer and compressor and using the dry mix which you add water to and then one person applies to the walls and a 2nd person then smooths out, with mud knife, to get the desired knocked down affect/thickness. Looking at "after" photos, it does look like this may help hide the seams well enough but I sure would appreciate feedback if anyone has attempted this.
TIA for an advice or feedback you all may have!