On the question of EC numbers the ACT Act has 7 as the maximum unless a special resolution is passed to have more. Perhaps the NSW Act has a similar provision?
Usually we don’t have more nomination than 7 and don’t decide on a particular size. Instead we try to get 1 or 2 nominations from each of 5 areas of the site and pass one resolution to appoint them all. Only once we had a vote on each nomination because one owner had made a point of writing on his proxy form to direct his proxy to vote against me and one other member of the outgoing EC. We were reelected with only 2 or 3 against but someone else failed to get 50% support, the only time someone who wanted to be on the EC did not get to be on it. There were certain ironies that AGM!