I've long thought that an interview of Robert Anton Wilson by Scott Apel and one of Apel's friends, Kevin Briggs, was one of the best interviews of RAW. It's not posted on the Internet, but it available in two of Apel's books: Beyond Chaos and Beyond, and Science Fiction: An Oral History.
So when I loaned a copy of Beyond Chaos and Beyond to a friend of mine, Tracy Harms, I was curious what Tracy would think of the interview. On X, Tracy posted, "Yesterday I read an interview with Robert Anton Wilson and it reminded me how delightful he was. So many fun, optimistic, enlivening ideas. We miss him." And to me, Tracy wrote, "The opening interview was a lovely reminder of his contributions."
Both books remain available; Beyond Chaos and Beyond has a lot of RAW material and biography of RAW that Apel wrote; for Kindle, it's about $5. Science Fiction: An Oral History is only 99 cents for Kindle, and you also get interviews with C.L. Moore, Leigh Brackett, Theodore Sturgeon, Philip K. Dick, Fritz Leiber, Roger Zelazny and Norman Spinrad.