I don't know of any truck of that age and size with four doors. International had them after the war, though, and others probably did, too. To my eye, the whole thing looks hinky. There wouldn't have been a broad panel between the doors as on this one, for example. If I were doing it, I'd take a complete sedan body and put it on the chassis, adding the bed right behind it. The four doors would look completely original that way. Still, it's an awesome looking truck.