Curt, I have seen one in the 'wild'. 1 1/2 ton, the beds must have been made by an outside vender, they do look different, but they were real!
The last I knew it was for sale, came with a very prestine 1 1/2 parts truck. Located in wine country, northern california.
Bob, you could probably made the fenders. The ones I saw were pretty simple with a rolled bead at the edge....Good Luck


N Cal Calvin
'46 Two ton, nice project
'56 Two ton dump,a work horse!
'94 C1500, Hers