Until you find an original brochure, check the vendors ie. Jim Carter's, may have a reprint. BTW , my 46 story is close to yours having mine since late 70s. I was hooked on this body style as a little kid riding in my uncle's panel. After finding this pickup and learning all the horror stories re. the history of years of wrecks and abuse it had suffered I began collecting parts trucks, 5 in all. And in those days of the muscle cars as you say these trucks were very affordable. Best of luck
Jim