All car dealers, service shops have access to old parts in the USA has they can do a computer search of the inventory of all USA dealers for that particular part. My 1991 Escort ZX2 parts are hard to find but Ford dealers can do a search for a slight fee. than there is an extra charge for getting to were I live but still parts are out there. I just got a engine hose that way. Plus of course there is all the specialty Vanagon parts sources.
Charles Nighbor