I didn't have any trouble with the dress, it travelled with me in the flight, the company was British Airways.
As regard the sand ceremony, you have to take with you the bottle, the 2 vases (o something similar) and the colored sand, otherwise you can ask to the wedding planner to take them for you but she will charge and you will not be sure you will like the design of the vases.
My program was very simple, only the name, the date and time of the ceremony, the cocktail and the dinner.
I had legal ceremony + sand + hand ceremony
Happy planning and let us know when you came back home!
Do you know if there are other ceremonies in these days? The SMB posts here the forum aren't very frequented whilest last year we were a lot of future brides ...