Unless you're a cartoon character, it's kind of hand to work that forging with one's fist alone! I think Mr. Legg is looking for few good shops that make them lock, stock, and barrel using traditional hand tools and "simpler power tools".
Using outsourced continental parts and "polishing" by hand is considered cheating by some purists.
Genady showed us some pics of double rifles that looked pretty special. I believe they're offered for sale by one of the members who operates doublegunheadquarters. Now, these things must be made in one factory, because they're too unique. Someone at another board asked how long one would last in 460Wby chambering. My response was: judging from it's construction and bulk longer then a Mark V bolt gun!"