I have successfully saved up to get in to the haunted mansion, and to be quite honest, it wasn't even that hard. ll you have to do is go in to festival zones, maybe go on trade broker, and do the task list.

If you want to do it but you are low on festival coins, then chances are, you haven't been doing festival tasks, which are insanely helpful.

Anyways, I am just so happy that I finally did it, and it worked out good in the end.