Specific Need

Not sure if they still do but VW used to make just what you’re looking for. You may have to add the heat and air but it’s a good starting point.

What's your budget? That pretty much drives what and how you end up doing it.

There's a company called Sportsmobile who will build a van to your specifications. Or you can convert a cargo van yourself, depending on your skills. Ours is a mid-roof Transit; and it's basically a large bed, with a teeny kit. sink and portapotty. Exactly what we wanted for sightseeing and visiting :-)

agwill wrote:
Build a conversion van. Check out You Tube, Cheap living etc..

I would go with that suggestion as well. For several years I had a Dodge Maxi Van which had a partial conversion.
Two front seats (Captain's chair type)
Two rear seats (Same) all 4 could swivel to a common round table (Single pedistal mount)

Two bench seats with a retangular pedestial table between them that could be lowered to make a bed (Queen) That's all.

If I were you I'd add roof air (13,500 btu or 1500 your choice)

And when you need it a portable cassette toilet and curtains (Including privacy for the privy) The toilet can be handy but the portable 5 gallon size is easily removed when you do not need it.

Same for curtains.

I’ve seen a couple of minivans with a cot in the back. Happy campers. Not so good in a cold winter, though.

It's amazing how pleasant a convenient bathroom can be. This gets more important as one get further I to grand parent age.

Grit Dog nailed it !

No, you're still looking for a B. Conversion vans won't have round the clock heat and AC. If you happen to get a sink or toilet with it, consider it a bonus. You may actually like it too.

Truck with a small camper might be less expensive than a B.

I think you're looking for a conversion van.