There were a lot of old manufacturers listed at
trailernames. I see Airlight and Airlite.
This Airlite reference seems to be British and from the 1930s -
Airlite Royal Caravan from the 1930s
I can't find any other google information on your question. Maybe you could have one of a handful? It could be quite the showpiece at rallies if it's the least bit artful in design and execution. You can bet on a lot of work -- and then triple your estimate. It sure isn't an Airstream though.
Whether you do or don't get this direction we'd sure appreciate some pictures for curiosity sake at some point.
