I'm looking at buying a 1959 C60 Viking and not being familiar with the fuller figured trucks I just wonder if parts like doors, grills, glass, door seals etc will interchange from the 10, 20 & 30 series to the bigger trucks. The truck has a nice grain bed on it but I would like to put on a period correct rock bed if I can find one if not if anyone has pictures of that era coal or rock bed I could use as a reference to build my own I would appreciate it. Thanks for all your help!