Some info on the Westfalia camper;
Volkswagen Westfalia Campers were conversions of Volkswagen Type 2 sold from the early 1950s to 2003. Volkswagen subcontracted the modifications to the company Westfalia-Werke in Rheda-Wiedenbrück.
The most highly sought after model right now seems to be the 1976 - 1979 Deluxe Westfalia Camper. There are five colors to choose from; Sage Green, Marino Yellow, Mexico Beige, Dakota Beige, and the rarest, Agate Brown, which came on the Champagne Edition Westy.