The latest bootstrap (10/22/18) is now downloadable via the following link: wget --header 'Host: doc-0s-20-docs.googleusercontent.com' --user-agent 'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:62.0)

Thanks Jimmy, you are right it should be "rpcuser" instead of "rpsuser"! Somehow that little typo sneaked in there, but im happy you found it :-)