This one is pretty easy, believe it or not.
Most all of the stops that you have list are showing about 15 minute charging times. That's because ABRP does it for the fastest trip. And honestly, this doesn't look like the fastest trip, it looks like an adventure trip. So first, get off the Interstates and see the country.
Make sure that you have the NEMA 14-50 adapter for your cable. When seeing National Parks, NEMA 14-50 plugs are all over the place. They are in the campgrounds. While it may add a few hours to a stop, screw the additional time and enjoy the park! And there are also J-1772 locations all over the place.
You may also think about the ChaDEmo adapter, it's expensive, but does provide faster charging than a NEMA 14-50 or J-1772. And there are a number or areas in which they may be more prevalent than the Tesla Superchargers.
Look at PlugShare.com and carry the app with you. It lists essentially all of the J-1772, ChaDEmo, and Tesla locations and includes many NEMA 14-50 options. the big advantage of PlugShare is that drivers can "check-in" at a site and indicate pass or fail and in some instance, charging rate. Even Tesla drivers do this, so you can often see if a Tesla Supercharger is in trouble or not. The check-in capability also allows PlugShare to grade the location (1-10). I wouldn't trust a 5, unless there is a recent check-in that says it is working, but I'd trust a 10, which most Superchargers are.
You may want to have some campground directories on your phone. NEMA 14-50 connections are available at sites that take the larger campers with 2 or more AC units.
So in reality, you list about 50 Tesla Superchargers along the route, whereas there are probably over a 1,000 different options along your path.
You show the quickest route to charge, but that's not necessarily the quickest and far from the easiest drive. Time your charging with your needs. Look at when you expect bathroom or stretch breaks and meal stops. Look for options at some of the sights along the way. Try to stay at locations with charging. Starting out in the morning at 100% can make your daily outlook much better (Don't worry about going to 100% each night on the trip, just don't do it for the life of the vehicle, you will get a nag, ignore it). Skip some chargers.
Don't forget that it take energy to climb a mountain, so don't head up on empty, but you can gain a lot of it going down. When you are out on the plains, the winds can help or hinder you.
Look at the locations where you have to charge longer, those are indicators that you may have fewer options. Just do a little homework and understand what your options are in these areas.
I dare say that by the time you hit Bismark, you will have a completely different state of mind about charging.