Hey Howdy Hey Theresa and welcome to planDisney!
Thank you for stopping by with your question on tours in Walt Disney World Resort as you continue to plan for your upcoming trip. Let's review what is available and then talk about more information on
Haunted Mansion. With regard to the specific tour you mentioned, Marceline to Magic Kingdom guided tour, at this time, this tour is unfortunately not available. The one tour that is currently available is
Disney's Keys to the Kingdom Tour. This in-depth 5-hour walking tour will give you so much more information on what you see and what you may not and everything that goes into the Magic of Magic Kingdom. You may go behind the scenes of various attractions throughout the park, Haunted Mansion being one of them, and get a little more history on the attractions and the park itself. This tour is super cool if you wanted more information on the park and you may even get the chance to experience some attractions along the way with minimal wait times! If you do decide on this option, I would try to talk to the Cast Members leading the tour before it starts to see if they have any flexibility to spend a little more time on Haunted Mansion.
Private VIP Tours are your next option if you are looking for an exclusive park experience. Your tour guide will take you around the park to give you an insider's history lesson and look at most of the goings on around the park. You will have access to most attractions during this time as well and can be a great way to experience the parks. I will caution you that this experience is a little more pricey but an option nonetheless!
I hope this helps give you a little more insight into your options. Haunted Mansion is an attraction beloved by so many and I hope you have a dreadfully good time on your next trip! Stop back with any questions you may have as you continue to plan for your trip, we are dying to talk all things, Disney!
Have a Magical Day,
Nick