Actually, 3 of the later versions were built 6 or 7 years ago. All custom built with Cockerham drives. I know because I've seen them and did some work on them while they were being built. Jon's friend Gary (of Sunset 3rd Rail fame) owns one of the original 3.
I'm helping to build another 10 right now (okay, for the last 5, or so, years). This latest batch will have numerous improvements over the first 3. Right now they're set up to be 5' gauge but Proto 48 could be done easily enough.
I'll ask the project owner is it's okay to post photos.
By the way, said owner, also has a one off of the earlier version shown in the above photos. The body was scratch built by someone else and a spare Cockerham drive was installed. Don't think it's been painted yet.
Jay