I love the Gold Keys and still have the ones you mention, plus THE WILD WILD WEST. Sincere attempts of telling entertaining, unpretentious stories outside the superhero medium are almost nonexistent today. Every storyline has to save the world, the timeline or the universe. Most westerns have supernatural elements. Even a HONEYMOONERS comic a while back had them in outer space or battling super villains!
Some Gold Key trivia: the early STAR TREKs had them wearing backpacks on planets' surface and rocket flames from the ship's nacelles because the artwork was outsourced to an artist in Italy who'd never seen the series.
Dell did a DANGER MAN comic based on Patrick McGoohan's UK spy series; Gold Key did one but used the series' American title, SECRET AGENT. When GK adapted the spy series AVENGERS they had to title it STEED AND MRS PEEL because a certain well known Marvel comic had the original title.