Ian,
I don't think the trip to Adelaide is worth it. While featuring a number of really strong holes, I found Royal Adelaide a little underwhelming, perhaps because I'de just spent the previous 2 weeks playing courses around Melbourne & the Peninsula.
Do not skip Barnbougle!! Besides Royal Melbourne West, Metropolitan & Kingston Heath, I'de suggest Woodlands, Royal Mebourne East, Peninsula North, Victoria & Yarra Yarra in the Melbourne 'Sandbelt'. Down on the Mornington Peninsula, check out Portsea & National Moonah, and it would be a pity not to see St. Andrews Beach (it is still being maintained I believe, but they might frown upon wandering about).
TK