Nice Clean Stock Restoration.
Just curious, what did you use for the interior rear cardboard side panels?
The panels behind the wood cargo tie down braces and vertical side ribs.
picture
Did the truck originally come with a cardboard ceiling with metal seam strips from seats to the rear doors?
What did you use for ceiling from seats to the rear doors?

1954 Chevrolet 3105 Deluxe Panel Truck
w/Factory HYDRA-MATIC