HI,
I was able to order my motorhome without a dinette. Instead, they install the couch on the drivers side where the factory dinette would have been, (passenger side would have been the couch), and mine they put three chairs on the passenger side, along with a tiny coffee size table, about 12" square.
This gave me three captains chairs on the passenger side, in a row, with the passenger seat forward, then the twin captains chairs and tiny table. I removed the center captain chair, then installed a 29" deep X 38" wide table. It is in a rack of sorts, that allows me to lift up the table top and slide it into the cabinet, built onto the wall. That cabinet is 4" deep, 29" tall, and has a slot about 3" from the passenger sidewall, so that the pins in the end of the table board slide up and down when I store it. It has a board (oak) that is 4" tall and sits below the table top, to support it, and a 2"X2" board on the other side, above the table top, to also support the top, from tilting to low, and keep it level. Above it all, there is a 4" wide top that is hinged, to fold up while moving the table into or out of storage area. It all fits just below my window, that is 30" off the floor.
You can also buy the table legs, in various lengths, and table tops of several sizes. I even had a 20" X 30" table in my first camper with a USA map built in, and laminated with a clear finish on top! You could sit at the table and plan your next trip. It was also easy to keep clean.
Many times the dinette is over something. Like a wheel well, or water tank, or water pump, or it is easy to remove with nothing under it. Sometimes a RV manufacture puts a small carpeted cover over the wheelwell, but normally there is a cabinet if the wheelwell is higher than the floor level.
I have a friend with a massage easy chair in his Country Coach RV. It makes a great place to sleep. So would a Lazy Boy recliner. They tend not to move around much while driving.
I personally find the dinette the most uncomfortable thing in the RV! Especially the upright seating positions that many manufactures use. THey could have tilted the backs of the dinette a little bit, but that might make the bed 4" shorter than one that is not tilted. You might find the cushions more comfortable if you cut a pool noodle to the width of your seats, then place this at the bottom, so the cushions sit at a angle? Worth a try, or just try it with a extra pillow at the bottom of the cushion - to see if it works out better.
It is your RV, enjoy it!
Fred.