as you're told, everything is available - set a complete step bed next to a complete fleet bed, and the "bolting right on" will require the same handfull of bolts for either
and if you're doing it yourself, price it out with a totally new step bed, then go find a workable fleet bed used and repair what you have - for that matter, the step bed is identical from 55-66, so if you don't find a used fleet bed, find a used step bed easier
Bill
