I found my hard copy on Amazon (a year or two ago). It was something like 1 cent plus $3 for shipping... Of course, it was a used copy, which came from some independent bookstore. No doubt many of them would be unwilling to ship to the U.K., but it's worth trying anyway.
It definately does not suck. Hardcore civvers (like many who populate this forum) will know most of its contents already, but you still may learn or re-learn a tidbit or two... Do you play Civ 1 much DukeNukem?