[JSL3]

I agree with what Chuteman says in his first post.
I chartered through the Moorings out of Placencia 2 times - in 2003 and 2006. It is a unique and very undeveloped place.
Ranguana is not to be missed and the only place in the southern cays that we had meals ashore.
Both years we ran into local fisherman and purchased fresh catch directly from them but I emphasize "ran into" as there are no marketplaces and places to provision outside of Placencia.
You'd do best to at least get your staples provisioned for you from the Moorings and supplement with what little else you are able to find.
As far as meat goes, the beef provided by the Moorings was OK, certainly edible but not great. Fish and other seafood are much better as they are caught locally on a daily basis.
On the cays outside of Placencia you will find very few people and very few boats. It is beautiful and unspoiled.
It is one of my favorite destinations (which is why I went back 2 times in just few years time).
I have read that development is not to far away for Placencia. Sooner rather than later is the time to go.