Here is a link to the info page for the Otari tape path kit in the Bottlehead store -
Otari tape path kit(https://forum.bottlehead.com/proxy.php?request=http%3A%2F%2Fbottlehead.com%2Fwp-content%2Fuploads%2F2013%2F12%2FOtari-MX-5050_BII_BIII-Tape-Path-Modification-Kit.jpg&hash=4a01dafbd188554a3d1137d28ccf9e496f45b5e6)