They were in Van Dam's yard on the Dutch/German border nr. Roermond, we bought 8 Jimmys in 1985 for a film production and drove them all back to UK with an M151 Mutt in the back.
Certainly lots were saved for preservation, at the time I think they cost about £1200 each.
The 8 we had were sold after the film, who knows, an HMVF member may now own one of them