I passed this along to another member in Alaska perusing two E350s, one of which has the 6.0 PowerJoke. The other is a 7.3 but has battery issues and has been sitting. I think in that cold of a climate they'd be better off with a gasser, and this looks like a nicely done conversion to start with.
"Cheese Wagon" <firstname.lastname@example.org>
Former owner - 1989 Ford B700 64-pass Blue Bird (Rest In Peace, Cheese Wagon)