Travelling time from Mt. Isa to Ayers Rock?

If you have a 4WD vehicle, Geological wonders and can avoid travelling through Tennant Creek, the distance between Mt Isa and Ayers Rock is 1115km.
If you prefer to travel the main highway, through Tennant Creek (which is safer if you are travelling alone and not with other vehicles), the distance is 1607km, and should be undertaken over a minimum of two days.