Or you could just set up an early 90's w124 diesel sedan.
Or a Unimog.
Or a mid-80's diesel G-Wagon.
Or an MB 208 EuroVan/Firetruck.
All options on a car that are already diesels are going to be less of a headache. The diesel G-wagons are very well loved and very recognizable and can draw a lot of attention. Esp the two door versions.

-Matt-

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Currently:
1972 350SL Euro 4spd
1973 BMW R75/5
1981 BMW R80GS
1995 FZJ80 with OM606 Conversion In Progress