I go against the grain again

, you folks seem like the adventurous type(hiking etc.), so skip all of the organized tours, get a good map, use the money saved and rent a nice suv for three days and explore on your own.
I agree with cindyo that you have a lot of things on your agenda, save some for your next trip. You will return!

The only thing that I would do
now is make dinner reservations at FF; 5:00 is perfect, and get there early for the best table; yes sunset is @6:30 but you will still be there then.
Also, under no circumstances book the Kukoo Kunuko for your last night; makes for a
wretched flight home. Enjoy