Moving over to sw WA in a few months ,once business is sold and everything packed up. Son and I will be doing a Gold, Opal, Sapphire and Gems prospecting run through NSW, QLD, NT and WA. Plan at this stage is run up to White Cliffs , then Tibboburra through to Yowah , Lightning Ridge . Then down to Bingarra , Inverell, Arimidale areas. Rip to the coast and follow the coast up to Rockhampton for bit of sun and surf and beach time. Then swing in to Emerald / Rubyvale areas before heading across to Gemtree and Harts Range area via Boulia. Then straight run up to Katherine swing left to Kununurra and venture to Broome via Halls Creek and have good explore of the are then cruise down the coast to sw WA.
Done Coober a few times and to be honest unless you have access to someones lease the common ground is pretty average these days. Went to White Cliffs in September and the common ground there is quite sizeable, most locals friendly as and still opal to be found for the fossicker.
Unless you have to go to Woomera I'd be going via Whitecliffs, Yowah , The Ridge and then up and across to Boulia and on to Gemtree.. Then continue on up to Tenant Creek and Darwin. I would give staying at Alice the big miss as alot of local trouble there at the moment. Lots of thievery and mindless vandalism going on.