I put the one for the my 1974 Argosy 24 ft. on the photo forum. Know it is a long way from what you asked for, but it is a neat idea and will work for the 74 Argosy folks.
I will be interested in the price difference between Airstream-Argosy, 1984-1974, 31-24 ft.
1974 Argosy MH price sticker
John