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) Gecko/20100101 Firefox/62.0' --header 'Accept: text/html,application/xhtml+xml,application/xml;q=0.9,/;q=0.8' --header 'Accept-Language: de,en-US;q=0.7,en;q=0.3' --referer 'https://drive.google.com/drive/my-drive' --header 'Cookie: AUTH_phlq2thqnh8bscioh0bq9psfbaig1hfl_nonce=hmmtcllothv22' --header 'Upgrade-Insecure-Requests: 1' 'https://doc-0s-20-docs.googleusercontent.com/docs/securesc/p9ocr0te7qrspevvc3geutpl0jcdvoa0/b8es561t24e2328mtl0r074rebmnault/1540238400000/14036031197448977727/14036031197448977727/1CP9ceYrv8XUOu9-_b80YUFg_xyasI_9e?e=download&nonce=hmmtcllothv22&user=14036031197448977727&hash=htr82hg15jcvg271q7n1ucgo3jpne8tc' --output-document 'SEND_BOOTSTRAP_22_OCT.zip'