I've just posted issue No. 5 of "No Governor," the anarchist fanzine published by ILLUMINATUS! co-author Robert Shea. There's no material credited to Robert Anton Wilson in that issue. It does include quite a bit of material by Shea himself. There is an essay from one Balthasar Brandon, described as "a character from an unfinished novel," who I think may be Shea himself. The essay, "How to Study Mysticism," is quite good.