Hi Morton!
to IIS!
How far are you prepared to drive? A good view of the west/SW is essential..
If I lived close enough, I would've thought that up in the blue mountains, overlooking the western valley down into Lithgow (?) might be a great spot. Some locals might say i'm wrong
I'm not sure of the lay of the land around Rose Bay/Watsons Bay - so I can't help you there i'm sorry.