We have a 2015 343RL that had peeling furniture shortly after we bought it in 2018. We replaced the theater seats with new recliners that we ordered online
https://www.walmart.com/ip/seort/529956270
We liked the sofa and the fold out bed (using an “egg crate” foam topper) so we decided to have it recovered at a local upholstery shop. It cost over $900 to have that done but replacing the sofa would have cost just as much or more. We chose a fabric that blended well with the window treatments. I bought some extra fabric and recovered the dining chair cushions.