You want 150k AA miles to get two r/t economy tickets on Air Tahiti Nui.
The other option would be 200k Delta miles to fly Air Tahiti Nui or Air France. This is worse because it's more miles and because Delta charges fuel surcharges on Air Tahiti Nui flights.
Search for award space on expertflyer.com and book by phone.
Get the current 50k AA offer and spend $20k on that card to get to 150k AA miles.