Mills Watson's character's first name is Harley - everywhere but in the closing credits, where he is called "Charley."
When Harley/Charley is awaken from his sleep with his partner in the clearing, he gets up and straps on his gun, but when they cut to a close-up, he has yet to get to his feet.
At the start of the show, and in a night sequence at the two-thirds mark, the outlaws are shown hiding out on an obvious studio set (the night scene is on a set used for the cave in "The Disciple," among others). But for the final confrontation, the outlaws are camped in a clearing in a definitely outdoor forest (which allows Matt and Hargrave to sneak up on them behind trees).