Nice... when will they be available for sale??
I don’t have plans to manufacture, but I might be willing to put together a kit of the pedal arm, machined shaft and mounting plate if enough people are interested. I am also happy to share the design with anybody if they are interested in building it from scratch. The hardest part is the lathe work if you don’t have access to one, but even that is simple to have done locally.
I actually have an additional straight pedal arm, material for the shaft (not yet machined), and an extra stock pedal to make the swing arm/pad if anyone is interested in buying it as a starter kit. You would need to make the back plate and have the shaft machined per a drawing I would provide. Then weld it all up.