First we're going to need girls. 1/10 or less girl population doesn't sound really good.
"Build it and they will come" suddenly has a seamy connotation.
I wouldn't hold your breath for real live women to come. Might I suggest inflatable women? That way if one needed to get off the island one could lash their harem together to fashion a raft...and as a bonus, have a way to kill time the long float.