Not on Tana, but on prior unit, a no slide TT, we had the carpet replaced. Went to the local carpet sales store, not a chain store, an independent. In talking to them we found they had a couple of installers that worked on boats. Boats = RV's. Not much difference. The installer did a great job.
Al and I removed all the old, pulled tacks, nails, all that stuff, ourselves. Cleaned it all up and the installer came. He worked a long time, so much cutting and working in small places (like around the bed, whewie). But, we loved the end result.
Because there were no slides we were able to get really thick, nice, expensive, wonderful carpet. That carpet will be around long after that TT rots away!