We bought our rig about two years ago. It's a fair bit older (1983) but our 26' Jamboree has a corner double bed with queen cabover. We don't have a dinette. Ours has a jackknife couch with a removable table and two capatain's chairs across from the couch. That is the PERFECT floor plan for us. The table stands on two posts and comes right out of the floor. Break down the table and the floor is nice and open. The jackknife couch sleeps people over 6' tall. The two captain chairs have a table that pops-up in between. We have had 7 sit down for a meal when there were bee's outside. At 26' long, it can also get to pretty much everywhere and parking isn't a nightmare. It even fits in a driveway without hanging out over the sidewalk.
Good luck finding the right MH for you.
Jose