Russel, any place that services/restores old Italian cars, particularly Alfa, Fiat or Lancia will have some dellorto stuff lying around - these were common carbs on these cars, although, typically of the side draft version rather than downdraft. A vintage VW shop might have some dellorto downdraft stuff as the DRLA 40s were used as well as the weber IDFs on many tricked out bug engines.