Ok so small update:
Because of something out of our control the BLT scans are no longer on Google Drive. We will find an alternative (possibly FTP or torrent) but for now, no downloads are available. I will keep everyone updated on when I can get them back up, but rest assured the files are safe on an LTO Tape and I have them backed up on my own hard drive so they will not be lost anytime soon.
Are you doing everything to remove all of the dirt and film damage?