You could 68 Super Stock restoration guide by Jim Schild
It’s sounds like your objective is a quick 2-3 minute you tube video and pics for IG. Not a 1/2 hour documentary. Correct?
For that, just look past articles in magazine that tell the overview of the 68 Super Stock story.... Simple
Gallery: The Story Behind Chrysler’s 1968 Hemi Super Stock Program - Mopar Connection Magazine | A comprehensive daily resource for Mopar enthusiast news, features and the latest Mopar tech
A quick google image search for: 1968 Super Stock Dart etc will give you all the pictures you need.