We love Moana!!!
We too have lived in a few areas around Adelaide but love the south and the beach, Moana beach is great as it has a drive on area as well as a child friendly section. so close to Mclaren Vale wine region and very friendly and quiet. Good choice of schools and they are extending the Seaford Shopping Center and also with the new rail extension at Seaford there will be quicker transport links very close by.
Its a lovely area.:daydreaming:
Good luck with your plans