Thanks for your help. If I can't do the DONE4 with the routing I thought, I'm really going to have to rethink the way I put the trip together. I think that we may have to go to Australia first- though that will help with the fact I need to get a new passport anyway.....

I really want to keep the same cities in the intin, I'm now not sure how to route it with OZ first, and still maximise the mileage....

Any help will be much appreciated!