"the book "Shakespeare Never Did This" by Charles Bukowski with Photographs by Michael Montfort [...] original signatures by both on the title page." doesn't really do justice to what you've got there. That's a signed hardcover City Lights first edition, which is the rarest version of that title.
Shame about the trashed dust jacket though. A savvy buyer is going to beat you down on the price because of that. If I was selling that book I might try to find the unsigned version with a pristine dust jacket and swap them out. The difference in the final selling price could be worth it, depending on what you have to pay for the unsigned book.
Oh, and FYI, the next version of the forum software (due out in a month or less) will automatically rotate sideways pictures when they are posted.