I'm sure the MFG buys whatever the cheapest product they can get that looks alright. If you will be doing a large area, I think one of your biggest hurdles is going to be deciding how you keep it flat.
When RV's are made in the factory, the flooring is put down first, and then everything is built on top of it keeping it tight and flat without the need for adhesives. I have seen people try to glue floors down to an RV subfloor, which works ok until they run into a lot of heat which messes with the adhesive. The flexing of the RV might cause an issue with adhesives as well. When I replaced the carpet on my slideout, I just used very tiny nails you could barely see. Worked well for a small area, but I'm not sure if the same approach would work for a long walkway that gets lots of traffic.