So I'd never thought about that story very hard before, but unless I'm misunderstanding something my father must have had enough current to run the DS4 Electric Injection pump fitted on the '97 6.5 liter diesel. If you found an early 90s (90, 91, and 92, I think) 6.5 liter it should have a mechanical injection pump.

I don't know much about cars, so, please someone who does, please feel free to correct anything I've said about them!