Check with Anne of Marina Jack.  Her e-mail is: banquets@MarinaJacks.com

Also check with Sarah of LeBarge Tropical Cruises.  Her e-mail is:LeBargeTropicalCruises@msn.com

They can tell you the cost for chartering their boats and give you an idea of food costs.

I don’t know if their Captains will officiate your wedding or if you’d need to bring aboard an officiant.