Thanks for posting the shipping document above. I have a '79 that the equipment label was still legible. The shipping document has additional codes that are not on the equip. label.
As for production #'s, it has been my understanding that due to the Warlock being merely an option pkg. no production figures survived the years. Part of the Warlock pkg. was the front anti-sway bar, which helps identification (yes even on 4x4's).
Here's a pic of mine which was found sitting outside in the original owner's field after a 10 yr. "rest". It was within 5 miles or so of the original selling dealer. Sheetmetal was solid, so we went to work on a resto.