We have seen many of them previously. They are at the NAMM Show every year for all of the World to see. Why would we pay money to buy one? The OP came up with this idea on his own and asked us if we would be interested in seeing the instrument after he bought it. Why not?
Sadly, there is absolutely nothing that we can do to stop it. Intellectual Property is not well protected in China and we have no ability to wage a legal battle on the other side of the world. Despite it being flattering that people feel positively enough about our designs that they get copied, I often wonder how the people that post here would feel if someone ripped off their life's work. It is very easy to have a theoretical discussion about this stuff, but when it is your personal ideas that get ripped off, I don't know, it just doesn't feel right at all...
J