@Bizywk, parking is expensive at Bahia Mar. Unless you are staying there multiple nights leave your truck and trailer at Harbour Towne and only take the boat to Bahia Mar. Harbour Towne is first come first serve. Reservations are not possible but that has not been a problem beyond having to wait for a spot in the past.
Working out a group deal with the marina will simplify booking and provide savings.
If people are already booking hotel rooms there may not be enough left to book to qualify for a reserved block and group rate.
@robert843, let me know if you would like an introduction to Bahia Mar.
Also, are you planning to lead the group across and back?