Mate unless you really really have to i'd put it off for a week or 2.
Failing that maybe if you drive west into the NT (suitable vehicle for it) than down into SA and east into NSW you will come to the Pacific HWY which will probably be closed, camp there for a while and get into Brissy maybe just to see your ute get washed away... okay maybe its not gonna happen like that but you should not underestimate the power of water.
Brisbane is on flood alert now and they are seeing downpours that have never been recorded before although this is a proven 35 year cycle caused by the Indian ocean dipole effect with la nina
We have no idea how bad it will get before it gets better but the wet season is just beginning and we still have the cyclones to hit the north... look out darwin you are overdue for a big storm.
http://media.smh.com.au/national/nat...s-2127942.html