TMBLSN
Our TL213s have that exact sofa now, and a standard two seat dinette across from the sofa...you can click on the brochure link I gave a few posts back and scroll down to the TL 213 floorplan. There you will see that there is a narrow 17" aisle during the day use with the sofa up.
You can see that if the sofa was where the dinette is, it would be flush w/ the kitchen cabinet and not intrude on aisle. The dinette could then be eliminated in lieu of something else, and that is where maybe an inflatable bed or the suggested futon chair-turn-into-single-bed might make a good option in opening up more daytime floor room.
In the Born Free Built for Two, twin beds w/ daytime cushion backs are pointed at the TV and their heads raise like in a hospital.
Born Free Built For Two