Well a 1lb bag of furry Californian carrots could cost ya $5 in Bimini
Fishing licence annual $150
Do a mega stock up in Walmart in Florida and aim to be as self sufficient as possible. Learn to snorkle for conch and how to cook it.
Rock sound on Eleuthera is a kinda quiet spot or at least it was. Who knows maybe Canival Cruise lines have opened a Disneyworld there.