What information is there about the comic book that appeared in the Buckaroo Banzai film?

The “latest issue” of the Buckaroo Banzai comic book as it appears in the film is, of course, a prop. The cover image was drawn by legendary pulp artist Michael Wm. Kaluta, best known for his many book illustrations and comic book covers. A broad sampling of his work can be found at http://www.kaluta.com.