We just happened to be rummaging around with "bed" questions ourselves this morning.
Maybe this
Tech Tip will help you (with the 1-ton ?) -- "Irwin's fight song: "Where’s the fun in that?" ...
With the help of Mar-K Quality Parts, we held a "virtual clinic" in our forms on " Making a Stovebolt Bed." Irwin Arnstein did just that -- a flat bed complete with a nice utility box. Click on the pictures to get a larger view. ~~ EditorThen there's three others under General Body Work:
BED - Building Truck Bed Sides and Front Panel -- Make new sides for the truck bed by Vic "vickraft" Leger
BED - DIY Flat Bed (with utility box) -- Step-by-step instructions with some help from Stovebolts R Us -- by Irwin Arnstein
BED - Rebuilding wooden bed in your truck -- Sometimes a frightening task, but this one went fairly well -- by Mark Marmon
Also,
use this search to find "making a bed." There we a lot of threads that popped up in there.
Maybe a start (reading) while others chime in.