I bought a 77 Dodge conversion van a while back........it's great for travelling. And a lot less hassle than towing a trailer. We took it out to Yellowstone last year.
You said about the overhead bed. I understand that you are a big fella (like me).....That bed is not a good idea for guys like us. You barely fit and you will feel like you are in a coffin. I redid my van and put a big bed in the back....much better for sleeping in.