I managed to catch up with the author of Sauron's Blog a few days ago. Firstly, in answer to your specific question, the original blog contained a total of 79 posts, all of which can now be found on the "complete, re-edited and updated" blog, along with a new 80th post.
https://sauron.blog/https://saurons.home.blog/2019/12/30/1-im-really-getting-tired-of-singing-all-the-time/
You might also be interested to learn that the author's website was subjected to a hack and the posts were thought lost, hence why he stopped writing it. Now that he's had a chance to recover them (via your link!), he's recreated the blog and is restarting it where he left off. The original posts can be seen here on the Web Archive.
He's also mentioned that he's working on another project, Kaiju Safety, that you might enjoy.
