Hello Mr. Stevens,
A little bit of Dennis Deck's C8 project actually made it's way down here to Texas in the form of one original 13" wheel and the four 15" aftermarket wheels seen in his "as found" photos.
A contact in Billings sent me information a while back on three cab 13 Fords he located close to him on a ranch, so I guess a few CMP's have filtered down across the border into Montana over the years.
Would love to see photos of the C8.
Thanks, David