check the
publications list on the links page here - the only thing that'll get specific about how they're built would be a shop or assembly manual, if they're available for 37 - check the repro suppliers link list - also the "How to Restore Your Chevrolet Pickup" by Brownell, reviewed by John, may have some info for ya
as for how many, the American Catalog of American Light Trucks lists production figures, tho that info is pretty limited from that far back, like prolly just how many trucks total were produced that year
Good luck in the search for a project!
Bill