Wedding in Bora Bora, Moorea, Huahine?

Hello,
My fiance and I have a trip booked for mid-May to have an informal wedding ceremony during our trip to Tahiti. We are planning a small legal ceremony afterwards with our family. We plan on doing some island hopping during our 2 week honeymoon/wedding. Questions:
1) Which island is most practical for a small informal beach wedding? We wanted to try to avoid going through the resorts (who seem to charge thousands of dollars for a 15 minute beach ceremony). Does anyone know any local folks who could help us with the arrangements?
2) We plan on definitely going to Bora Bora and Moorea. Does anyone have any strong recommendations on the 3rd French Polynesian island to visit? I heard Huahine was nice and small, but we are open to other islands as well.

Thanks,

Katie