The hardest thing I have gleaned over the years, with people doing what you are doing is, getting people to agree on the date. This seems to be a sticking point...usually the most popular time frame wins out,and people then, have to adjust.
Absolutely you will need the help of a cruise specialist, to coordinate it all from their end..Don't book through the cruise line directly. Good luck..we are here to help with whatever we can.
Trip, with her book & tea!
Chat Hostess & Board Moderator