Twin rear beds
RE: Caravelle Dinette Options
During the 1960s and 1970s, Airstream typically offered two options for the smaller single axle trailers. You could specify either the dinette or an "L" shaped twin gaucho arrangement. One of the features that attracted me to my '78 Minuet (similar in size to your Caravelle only an Argosy) was its twin gaucho arrangement.
The "L" shaped twin gauchos seem to have two distinct variants. One version has a true "L" that wraps arond the streetside corner to form a continuous surface. The second version which my Minuet has, is a two sofa arrangement with about an 8" gap between the front sofa and the side sofa. The two sofa arrangement doesn't offer the side benefit of an unusually long sleep surface that the true continuous "L" sofa provides. The longest of the two sofas in my Minuet is about 76".
If what you are looking for is a fixed bed across the front, I am not aware of any vintage floor plans of the 1960s or 1970s that had such an arrangement. The cureent CCD 22' Airstream has such a floor plan, but it does sacrifice a certain amount of living and entertaining flexibility (IMHO).
Kevin D. Allen
WBCCI (Lifetime Member)/VAC/Free Wheelers #6359
1964 Overlander International/1999 GMC K2500 Suburban (7400 VORTEC/4.11 Differentials)
1978 Argosy Minuet 6.0 Metre/1975 Cadillac Eldorado Convertible (8.2 Liter V8/2.70 Final Drive)