Please post pictures of that 1-ton suburban donor. They are about a rare as hens' teeth.
Sorry about my bad joke. There were no 47-55 Advance-Design Suburbans.
There were 1-ton Panel and Canopy Express trucks that could be butchered (cut up) in an attempt to make an interesting "fleet-side" bed. Might as well look for a 1-ton donor panel body with an end-gate. The bottom piece might be convertible to a pick-up's "tail gate".
If anyone undertakes/attempts this type of project, please post before/during/after photos of your efforts (no matter what you end up with).