Go to woodnet.com You might post it there with results.
There are other woodworking forum that you might try.
The big boys and professionas even professors for Harvard and Yale hang out at woodweb.com. It is everything professional. I picked up 49 great carving tools from there for $400. I sold one set of off set goughes for $800. and kept the other 40 carving tools. They can help you find any engineering problem in construction.
The wood collectors have the Miller Falls tools.
I have them but I am not willing to part with any. I collect all types of tools and machinery.
I think I have at least 5 different blades that will fit in my handle. Tool shows and swapmeet along with the E bay and the internet are the places to look. Once in a long shot something like that will come up in a thrift store.