This trip is to celebrate our 30TH aniversary. Our children are grown. We have been DVC members since 1995 and are huge Disney fans! Family and friends don't get our continued Disney vacations/cruise since our children are now married and starting families of their own. Soon it will be time to continue the tradition with the grandchildren. First trip to Hawaii. Held off going once we heard about the opening of Aulani.
We just came back. You have made some good choices!
I would also add:
the Aloha Stadium Swap meet, held on Wednesday, Saturday, Sunday....they sell fresh tropical fruit cut up to enjoy while you walk around, and the best prices on souvenirs
Polynesian Cultural Center (stop at Dole on the way up, as PCC opens at noon)
Visit Waikiki Beach and have lunch at Duke's. They take reservations
Go out in a catamaran while at Waikiki Beach, there is one behind the Sheraton that we enjoyed
If you are in good physical shape, hike up to the top of Diamond Head when they open at 7 or other early time to beat the heat. A view you won't get elsewhere!
Purchase the book "Oahu Revealed" for honest and unbiased evaluations of the area. We found them to be spot on.
Have the best time! We are really missing it.