If they are at MK on a party night, they will be asked to leave around 5 or 6, so that is something they should be aware of, and not have saved that night to watch Wishes. That is, if they're not buying tickets for the party, of course.
I don't know enough to suggest any area at OKW, but because steps are hard for me, I always ask for first floor or elevator building. People here do say that first floor studios often have lots of foliage blocking light. "Our" studio was in an elevator building, and it wonderful!
Bobbi