Too many options

We're thinking of upgrading our 16.5' Conversion Van RV Class B to something bigger. The fold down couch/bed is barely big enough for Linda and I to sleep on. It's like 30" wide, slightly wider than a twin bed. See Pic. Every time we want to roll over at night we have to wake up to do it. To get to the toilet we have to scoot to the bottom of the bed, turn around and lean backwards onto the toilet, up one step. A full size (double) bed would be like luxury.
The kitchen sink is in the corner hard to reach. The stove is out where it can be used but we don't use it, we don't fry foods, it's bad for you. We do have a microwave and toaster oven to cook in.
I like our present RV size and it get's good gas mileage even pulling the trailer and motorcycle. Easy to park anywhere, even at home. We only have room for a 24 footer at the house.
Most Class A's are 30' and up. They get 6-10 mpg compared to our 15-17 now. There are a 100's for sale in Dallas, Albq. , Tucson and Phoenix. Very few in El Paso, of course.
We started out looking at diesels but most are $40-50k. Gas engines are much less $10-30K. You can buy a lot of gas for $10,000. ~4000 gallons! or 30+k miles additional. Most RV's for sale have about 50k miles on them. So the drive train still has lots of life left.
Then if we ever wanted to live in it we need a washer/dryer combo. Most do not have one, most are not wired/plumbed (prep'ed). But I can do that. For $1200!
Then our health insurance is only good in El Paso. Linda's elderly mother is another problem.
But we want to get out of El Paso and do something else, other than just sit here on our lazyboys.... And then there's selling to house and doing something with all this "STUFF".
Nothing has jumped out at us to buy, YET!