This what you're looking for? http://www.thecl***icford.com/1956_Ford_production.htm I know the panel wagons are pretty hard to come by.
That would be a sedan delivery, I can't remember the #s, but I know theres not alot of them. I sold mine back in 86 for a boat load of money. Mine had the factory black paint with a 390 police interceptor in it and every one always called it a he****. Very fun cars.
I know I'm a little late but I'v got one and I'd be interested on how many were built. mine was originally 272 auto. It now has a 351 cleveland 4v in it.
Once have a '56 Meteor sedan delivery, black with gold interior, 6 cylinders with manual 3 speeds on the column, one of 222.....