Have you thought about having a wedding the night before. There are great locations at both Hollywood Studios and Animal Kingdom and you don't have to rent out the park, you just have to start two hours after park closing so you could have a 7pm ceremony and then an in park reception.
Options are Great Movie Ride, Tower of Terror courtyard, Narnia, Fantasmic dessert party/cocktail hour, Hollywood Brown Derby, Hollywood Hide Out, and Animators Building
AK options are Tamu Tamu courtyard, Harambe, Tusker House, Festival of the Lion King.
Just trying to offer suggestions, no one here can really completely understand what exactly you are looking for but hope that helps.