Thanks for the offer of help, knowledge is power and we love to learn.
My tow is a 2000 Dodge 2500 with Cummins diesel power, if I can hook to it the truck can pull it and still get 15MPG.
There are two of us and one slightly insane dog, non smokers, even the dog.
She has fibromyalgia so a unit too small would be a BIG issue, that is why I chose the size I did, but opinions on other sizes is welcome for sure. I have many thousands of miles experience pulling trailers.
My experience in Alaska with tens of thousands of miles camping, pulling boats or snow machines, boondocking all the time, taught me a lot. I had a diesel pusher MH there. A trailer camper will be new to me.
AS seems the way to go, some other have mentioned Avion too, what do you think????