RVing to the eclipse?

If someone has already started a thread on this, I missed it.

Hoping to buy a motorhome this week and drive 100 miles to the center of the path of totality next month. So, apparently, are a million other people. Hotel spaces are long gone and the few RV spaces left are in the $300 and up range per night, 3-night minimum. (DH was actually just planning to drive up in a car for the few hours until I reminded him that most places along the path of totality, at least here in Wyoming, are tiny towns and he won't be able to count on finding food, fuel, or even a toilet to use!)

So I'm curious what others are planning. I compare it to boondocking in a traffic jam - I won't count on being able to buy anything and will expect to do a lot of sitting in traffic. I'm not ruling out switching to back roads, either, although since everyone has GPS they might not be any better. If we do find a motorhome and can nab an RV space for the one night, I plan to drive up the day before and hopefully not move again until the eclipse is over and traffic has thinned out. With air conditioning, a bed, food and drink, and a bathroom, that sounds quite comfortable. I figure a full gas tank should handle a 200-mile round trip and powering the generator for 8-12 hours. I would rather not carry spare gasoline if possible.

Would love to hear thoughts and plans of other people. I'm not new to RVing but I don't know everything, and if I am missing something, I'd rather know about it now while I have plenty of time to alter my plans.