Crikey !!
31 days to ride from Darwin to Adelaide? Into the headwinds for much of it no doubt! That is a bit of an express ride. Shame to miss out on so much of the scenery and sights along the way. We took about 30 days to ride just from Adelaide to Oodnadatta, but we did ride the circuitous, but very scenic and traffic-free, Mawson Trail, then the gravel Oodnadatta Track through the desert.
The Stuart Hwy has little appeal for me - ride it if I have to, but it's just another sealed main highway.
[edit] Hang on.....
I KNOW that guy!! Rob O'Meara; a fellow club member and touring companion on a few long tours