I planned a few more details about the trip. It was not as trivial as I had thought it would be to map out the complete supercharger route. While the Tesla site shows the address of all the open superchargers, Google Maps search is not up-to-date enough to find them all by the keyword "Tesla Supercharger".
So, I manually and painstakingly created a 40 (the maximum) waypoints on Roadtripper, one for each Supercharger on my route.
The most interesting icon is the little gas pump at the top. It says I will use more than $700 worth of fuel. Ha!