Yes, I’m glad Archive has so much Welles radio stuff for free, although it is of quite variable sound quality. As someone else once said here, we're lucky to have as much of Welles's radio career as we do, although there are still many significant shows missing, especially, as you mentioned, the Commentaries.
Did Welles really hate the role of Harry Lime? If so, he didn’t have much of a right to, since the character was so good to him when he needed it. Harry Lime is one of my favorite Welles radio series too, and the fact that he directed and wrote many of the programs makes them all the more truly “Wellesian”. Many of these shows also continue, sometimes tongue-in-cheek, and with a more European slant, Welles’s political interests that he developed throughout the 1930’s and 40’s. One of the programs Ray included at my recommendation was DEAD CANDIDATE, a biting satire on U.S. economic imperialism that eventually was expanded into Welles’s first novel, UNE GROSSE LEGUME. It’s one of the best LIME shows, although the novel, for some inexplicable reason, has never been published in English.