If you are talking of Lodoicea maldivica, Seychelles may be the right place to find male trees (as per Wikipedia). The challenge will be to transport viable pollen.
If you give a near natural condition, it is easy to grow palms. At JNTBGRI we are growing over 170 species of palms from various tropical areas of the world.
At last our coco de mer is bearing fruits as a result of pollens received from male palm from Thailand. We thank the government of Thailand and all those who facilitated the exchange of pollen from Thailand to our botanic garden