Thanks everyone for the advice.

I'm renting a garage that has no running water in the winter and isn't attached to a house. The garage is heated, though. And it's only available til April so the truck has to be at least running by then! So no waiting til summer to work on the engine.

If I can find a crane to borrow I'll see about getting it dunked. Right now it's together and running but I'll be taking it apart to clean and paint.