Try a LazyBoy store to see what they have... and they do have sales. Their recliners come apart in two pieces - the back lift off and they are super easy to get into a RV. Perhaps their sofas do the same.
Also, I've seen sleepers in a love seat size that make into a twin. Can you fit two love seats in the space to give you two twins? Good luck!
Full-timed for 16 Years . . .
Traveled 8 yr in a 2004 Newmar Dutch Star 40' Diesel
& 8 yr in a 33' Travel Supreme 5th wheel