Here's a cleaned up, deskewed, OCR, merged pdf of those three files into one. I also added bookmarks and a table of contents that hyperlinks to the page, and changed the page numbering system to match the text.
https://drive.google.com/file/d/1SSZbH8dxkygFVGJPAB5f9X_9blBRwXPA/view?usp=drive_link