Ruth Wantling was looking to sell off her late husband's books last year, so I would expect that we'll see more of it crop up on eBay. Though if all of it is in this sort of rough shape, she may be disappointed by the response.
Of course I would like to see a copy of, oh, I don't know, Flower, Fist and Bestial Wail with patches of corroded tape across the spine. That way I would have a shot at it. ;)