I am thinking about renting a 2WD basic campervan (going by myself) and driving from Adelaide to Darwin in May 2013 over about 18 days. One of my interests is astrophotography which I would like to try in the Outback, which means pulling up somewhere overnight away from lights. Would this be practical in a campervan where rules usually state I must stay in the bitumen? Presumably there are rest areas along the route where I could park overnight - or would this be considered a no-no? Are sealed side roads rare?
One more question: in May, is there a need to pre-book powered sites or camps on the Adelaide to Darwin route? Such as with Uluru or Alice Springs? Or, is it possible to 'play by ear' and find somewhere on the day of arrival?
Thank you for any help.