This is what happens when I get obsessed with an idea. Via a link from a friend's
Livejournal, I found
DoomBuggy Productions, with its At Home Imagineering section. And there was a diorama of the Haunted Mansion stretching room. In a low res jpeg to be printed out. It is well known- I am a resolution whore. There was, however, a link to the original site it appeared on,
dollarshort, where it lived in a pdf file. In theory. Sadly, the pdf file was no longer available for download because mac.com went pay. So I got obsessed. And started hunting down reference material. And writing a note asking for it, not expecting her to check such an old entry. And starting up Illustrator, and making my own version(s).
Mine stretches. This means the instructions are horribly muddy and confusing. Eventually I'll try to get step by step pictures for you here to show you what to do, but I haven't even finished making mine up yet. Also everything is in two pieces now, first and second page. You'll just have to deal because I haven't bothered to make it in to one file yet.
The same disclaimer about not expecting it to be easy or fun applies.