I think this should cover what you need to know and it also has a link to RAAF Base East Sale.
RAAF Base East Sale is a very pretty little Base and the Messes are very good and friendly. I think from memory it also has a Golf Course and Swimming Pool.
Sale itself is a nice big rural town and you should get all you need in terms of shops, clubs etc.
Sale is situated in the Gippsland area which is a beautiful area of east Victoria. You are within striking distance to scenic drives, lakes and beaches.
Take note of the weather, for it can be quite hot in summer and cold in winter and my advice is to bring your winter woolies. :)
Here is the Link,
http://en.wikipedia.org/wiki/Sale%2C_Victoria
Good luck and best wishes.