I mean, you can buy a copy in any reasonable bookshop, so I'm not sure how "lost" it is.
I get what you are saying, but should just point out that the Kindle version of the Penguin edition provides hypertext links from the poem to the deranged narrator's commentary. I remember reading a paper edition sometime back when, and being able to flip via hypertext is definitely superior to paper page flipping. And I'm someone that loves paper books.
This is a truly amazing and very, very funny book. If you haven't read it, you are really missing out.