Dont Do It!
A couple years ago my company had a deal to with 4 star to act as their back up plane if they could not get one of the 4 DC-3's started that morning or they had too much cargo. We came down there with a brand new C-208 and every single one of the pilots wanted to jump ship and get a job with us.
I spent a month there hanging around waiting for them to fill my Van and I saw some scary MX being done. THe workers there are some of the coolest people in the world but they are given an impossibly small budget by the company owner in Philly.
Last time I was down there they told me they put one in the drink right after takeoff from St. Thomas. I also spoke with another guy from the states that was convinced he was going to die when the fabric came off one of the DC-3's tails and forced the plane to pitch down while they were low.
In fact they are always low over the water because none of the pilots seem to want to fly near clouds and with 7000 pounds of Cargo the old birds dont really want to climb that high anyway.
I got the chance to fly one while I was bored, but I chickened out after the "Captain" demonstrated how much problems the plane was having coming in and out of feather. Sucks because I always wanted to fly one buy sitting in that cockpit I knew it was not worth the risk of leaving my wife a widow.
Anyway, you have to either have a crazy high tollerance for risk, or be a poor local pilot to consider flying there. Fly one that is really well maintained and tell us about it!