The blued birds head frame is custom made from an early Old Model Super Blackhawk with a long frame.
I found it on EBay, don't know who made it but they did an excellent job.
Only one gun, posted the picture twice
The stainless I bought here in the classified. It was an aftermarket, maker unknown. Was made for an old model with a narrow trigger. Took a lot of filing to get the wide trigger to fit.
They have been a pretty fun project.
Wasatch