would you make it a 58-59 if you could come up with the parts? not that I know of any for sure, but there is a guy in Calgary who seems to have a few of these old trucks laying around, and he sells stuff. the later models are just a little longer out front so a little more room for engines, rads, a/c, cooling fans etc. the fenders also lend themselves to being made a little wider. check this thread that has extensive customs done, including widening the front fenders to fit the wider stance.
http://67-72chevytrucks.com/vboard/s...766016&page=11
the calgary guy is on kijiji selling trucks last time I looked in the classic cars section. check his other ads or simply message him.
https://www.kijiji.ca/v-classic-cars...ide/1651162320