I ran across this high-level doc about the design process for the ar-1, pretty amazing lengths that these guys took in all aspects of the design, materials, and attention to detail. It doesn't seem possible that they will ever make their money back on this project.
https://dealersource.sel.sony.com/dsweb/p/ar1/assets/SS-AR1_WhitePaper_Final_LoRes.pdf
https://dealersource.sel.sony.com/dsweb/p/ar1/assets/SS-AR1_WhitePaper_Final_LoRes.pdf