There are bunch which are always listed here under Ebay or Craigslist. Not sure why people ask as this is where everyone is finding them.
Some just don't want to pay the cost being asked.
1973 Dodge Shorty B-100
Life should not be a journey to the grave with the intention of arriving safely in a well preserve body, but rather to skid in broadside in a cloud of smoke, thoroughly used up, totally worn out, and proclaiming