Mater,
I also bought a project 59 this Oct . I got it on a long frame but also came with a short bed roller frame so I switched the cab over .... IMO I would make it a fleet side if you would like to make money with it , I soon realized that the short bed fleetside are a rare bird , but the long bed seems also to be a little rare but the long boxes are easily found , especially in your neck of the woods
Dan