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The reason that the route you've listed doesn't come up on most mapping programs is that it is the shortest route, but it is not the fastest route. It is also closed in winter (Oct/Nov to May/Jun).

Having said that, going through Death Valley and across Tioga Pass (CA-120) is the preferred scenic route to take in the summer months. I will note however, that such a route would not take you all the way up to Tonopah. Rather you could go through Death Valley, and then head up US-395. There are plenty of places to stay like Lone Pine or Bishop to stay along the way.