Like has been stated there is land everywhere owned by SAFECOM/SAMFS. I am sure one day in the future there will probably be a station at Aldinga, but not this week.
As for Rescue, I am sure it won't be long before Seaford are a 9, if not a 9 from word go, so yeah. Doesn't meant Aldinga won't be rescue, they just may not come north anymore. WHO REALLY KNOW'S