I know this is an old post, but I am going to sign in anyway because it impacts me in several ways.
I had an auto upholstery shop for several decades.
Any upholsterer of furniture, cars, boats or aircraft can replace the fabric and reuse all of the surrounding vinyl.
However it is very difficult to get the OEM fabric. You can use a different fabric and mismatch with the rear seats or replace the rear fabric and sell the old to me, LOL.
I am looking for OEM fabric for my 97 Rialta. I will take new or used from any seat in the coach. You can just cut the seam around the fabric and sell me that.
I can use that fabric from dinette seats or second position passenger seats.
I can be reached at firstname.lastname@example.org