Do not try to see all of it
Do not try to see all of it. Choose a stretch, a town to sleep in, and a day without kilometers. The landscape changes so much that rushing is the easiest way to miss it. A couple on the Austral wins by deciding to stay, not by adding towns to the map.
Pick the stretch by where you can sleep well and head out again without an endless day. If every day ends at night and tired, the road becomes a transfer. The route deserves that you get out.