This info is very old - long shot at best but .......
Try Eric Van Winkle - 428 Orchard Lane, Biullings, Mt. 265-9837 in your area code
I'm scrounging through my cards - there is a gentleman in Beulah, North Dakota - northeast of you ....Watson(?) with a forty acre field full of Edsels out by the Antelope Power Station. I found him by asking at the NAPA in Beulah if there was a local collector of old Fords....and as it turns out - he is the king.
If you go there don't expect to get away too quick........he doesn't get too many strangers to talk to.
Steve Metzger Tucson, Arizona