I believe we are the only couple who DONT care for French Polynesia. Been there done that, and were not impressed. It is highly over-rated, For such long distance travel towards that direction Australia would be our choice (been there 4 times since 2003 and probably will be there again next year.)

Your time is too short for such a long journey as hindukid explains it well and I totally agree with his reasoning.

If you MUST do French Polynesia, a cruise in that region is probably a better value than staying in a resort at Bora Bora. The restaurant bills can be quite shocking in case you haven't done much research. There is no cheap alternative unlike other popular tourist spots in the world. A cruise offers you a cabin, all the foods (decent enough and probably is better than 85% of the foods you would have on land at French Polynesia), AND transportation from island to island so your scenery is not static but dynamic, moving and changing...