What a wonderful way to celebrate your aunt's 100th birthday. I would love to do a family reunion/extended family Disney trip, maybe one day. I think we are going to give some of the mid level restaurants you mentioned a try on our upcoming trip (The Plaza, Sci Fi, etc.); and we are going to keep our fingers crossed about FP+ as we haven't been to Disney since the new system was implemented (our last trip was May 2013).
Dreams Unlimited Travel is committed to providing you with the very best vacation planning experience possible. Our Vacation Planners are experts and will share their honest advice to help you have a magical vacation.