As far as finding books, places that sell used books often have these types of books for very inexpensive.
Looking forward to reading this.
It would be great to have a list of such books/topics which have been re-presented in improved versions.
The wonderful physics text:
https://www.motionmountain.net/
is an excellent example of this.
A more prosaic example is this presentation as PDFs of Bertrand Russell's _The Principles of Mathematics_:
https://people.umass.edu/klement/pom/
As far as finding books, places that sell used books often have these types of books for very inexpensive.