I agree with planning to drop 1 or 2 stops... Don't hesitate to spend 2 days in North Sound or 2 days in Anegada...
I would suggest early departure from North sSound (7-8am is not too early) which would essentially give you a full day at Anegada beaches... Call Dean W and reserve a vehicle... Eat at LobLoly of Cow Wreck. Make dinner reservations as you arrive at Anegada.

Come back NEXT year and visit some of the places you wish you had gone(but not enough time) and revisit selected places that you enjoyed this trip.