Dave Olson at Lionel answered a lot of the Berkshire tooling questions in a previous thread and kindly shared some of the CAD drawings. He does a great job with things like that. Short answer is: The majority of the tooling is from the conventional classics 726 Berk, with the update to the LC+ features. Here is the link: https://ogrforum.ogaugerr.com/...lc-berkshires?page=1