Its good to see you my friend, that you are planning so accurately and precisely because when it comes to guests, it includes lot of calculations and meticulous planning for the arrangement, reception of the guests and many other factors that plays a key role. Coming to your question, there is not many that provides this service. Grand Old House is one that provides this service. Grand Old House is having five types of rooms available with them which amazed me when I enquired with them and checked on their website. Now may be they have extended their service but am not sure. They are Plantation Room, Gazebo Room, English Room, Colonial Room, and Wine Room. But the requirement which you have stated fits for Gazebo Room. This room has a great sea view of the sea and fits up to 30 people. So you can visit their website http://www.grandoldhouse.com/ and book online.