[Richard]

One more tidbit to add to your unicorn hunt. If the coach is equipped with Dometic AC, there will be a internal air handler under the aft dinette bench. It’s a non starter to move it. If the unit is equipped with SCS basement units, you could remove the dinette entirely.

You haven’t mentioned details about your intended use other than extended periods off grid. If that includes off road, then you may want to seriously look at the ground clearance issue. Essentially Newells have NONE.