we have an '07 Roo 23SS and know what you mean.
but we'll probably be moving to a travel trailer this year, when i retire.
many of the trailers, that we can tow, have the same kind of sofa.
we had a salesman contact his Rockwood rep to see if we could replace the typical sofa that converts into a bed, with a sofa recliner.
we were informed that we could for an extra $700.
the problem with the 23SS's sofa is that it's not like the other sofas in trailers. it's not freestanding. plus it's very short and not sure if you could find a sofa recliner to fit in that space.
so, i suggest taking it out and replacing it with a couple of recliners. you can get the sofa out and the recliners in, through the front bunk end.