This guy in Oregon has a bunch of parts trucks, including what looks to be a '65 4wd.
https://medford.craigslist.org/cto/6014279435.html
Here is what seems to be a '64 C-30 panel. The listing is in Venturs, Ca but, it never snows in Ventura.
https://ventura.craigslist.org/cto/5984195245.html