John emailed, "When I met him [Jan] he still had a lot of inventory of his father’s. If anyone has what you’re after, he might..."
I talked to Jan (the son) about this List of Locomotive Workshop Diesel Kits years ago when I purchased a prototype Locomotive Workshop Alco C-630 from him and his Dad's estate. Jan did not have a list of Diesel Locomotives made by his Dad's Locomotive Workshop at that time. It seems the son at that time was more into Traction/Trolley models and his day job in Industrial Design than Diesels!
Regards, Steve