The Magnificent Stranger (1967) is not a real film; it was a couple of episodes of Rawhide strung together, and Clint took legal action to prevent its being shown. I'm not sure it ever did receive any theatrical screenings, though publicity items were released and turn up on eBay and elsewhere.
Paint Your Wagon, The Beguiled and Bronco Billy aren't really Westerns, by my criteria.
Anyway, thanks for posting, satty.