It is all numbered and Andy said that they will all be together as much as the ACO layout allows. He'll supply a site layout once he has one.
In addition, he has also said that he'll happily sort this again for us next year if it all works out OK this year, hopefully taking out the worry and misery that most of us, particularly those with larger groups to organise have seemed to suffer at the hands of the ACO over the last couple of years.