Split it up in segments. Link previous chapters in subsequent posts.
You can also use the [ pre ] [ /pre ] tags to maintain your spacing if that's what you're worried about.
Pre tags let you insert all the spaces
you want
Or make a blog and link it here, whichever works for you. I may or may not like it, but no way am I finishing that in one sitting, and I'm not interested enough to bookmark and come back to read it all later.
Sorry.