I'm lucky, in my country our main haunt has had Conjuring, IT and SAW for years. And my local amusement park haunt had a house with pretty much everyone in it lol, and I mean everyone: Pennywise, Myers, Voorhees, Freddy, Annabelle, Ghostface, Leatherface, Ring girl, Jigsaw, Grady twins, and probably a few I forgot. I think they may have fractured a few copyright laws doing that.
Props to the mountain for taking it up a notch. It looks like a fun event.