heh- as the man above has said, it's much easier to copy an original than to scratch-build.
Though if you happen to know somobody who HAS an original and a machine shop... you'd still be breaking patent laws, I think.
I don't know how international patent law operates, but it seems that way to me. Even so, a licensing fee to use the design would be far from unreasonable (and almost certainly work out cheaper than buying and upgrading) though I don't know how amenable WA would be to the idea. Probably not very, I would imagine. Niche producers rarely are, even though their own volu