I love it! This was what the ultra marathon community used to be like before it became commercialized and professionalized (https://mattmahoney.net/ultra/, especially the story of Gravel Man https://mattmahoney.net/ultra/death600.txt). Now you can't run 50k without a crew.
EDIT: And this is what a serious amateur can do on that route: https://www.latimes.com/california/story/2022-03-10/astrophy...