For those who would like a print version, this manuscript eventually got published as Modern Classical Physics https://press.princeton.edu/books/hardcover/9780691159027/mo...
https://www.amazon.com/Gravitation-Charles-W-Misner/dp/06911...
Maybe tome size a Kip thing?
it's a book that I can imagine reading a lot in a very quiet world (i.e. basically a dorm or library before phones or computers) but it's very hard to actually get my teeth into it without that.
I hadn't realized it, but it looks like this new book is for ph136 the junior level (1st year grad) general rel prep class.