It sounds great. The Exorcist is my alltime favorite horror film, and a haunted house project based on The Exorcist sounds exciting. (Or, as Pazuzu said to Fr. Karras: “Mirabile dictum, don’t you agree?”
Sadly, I don’t know if you’re going to find much in this fansite anymore. I think it’s been dead for a while. Ask I’ve ever found here over the last year, aside from your recent post, is spam.
I do invite you to check out my YouTube channel, Martok The Unbidden, and check out the animation projects I’ve done which are visual excerpts from the novel of The Exorcist. Soon as I can get my old PC fixed (or get a new one, and the animation programs I need), I plan on redoing them.
Keep up the great work with what sounds like a very spooky fun project.