That's very cool you got to see and play them. I think there would be some appetite for this - the headless market, while small, is enjoying some new life, and Ned is one of the most reputable instrument designers of the last 40-45 years.
Yes, I saw the recent Fb post of freshly machined hardtail and trem parts, it looks like a superlative piece of kit. Did he use licensed Steinberger units previously?
I first became aware of Steve's work via his acoustic guitars years ago, that arresting looking jumbo with the asymmetric pinless bridge. Another titan in guitar making/design of the last several decades.
Yeah, Steve's headless guitars in the 80s used Steinberger parts- both necks and TransTrems. He is reissuing his headless models, and found someone to make TransTrems for them. Pretty amazing, really. A Steve Klein headless guitar from that era was the best instrument I ever played. Unfortunately, it was $8k.