So you mean if I got a PP from this guy then it would use the exact same components and everything would be identical with the only difference being that it wouldn't have come through the official channels.
No, PP manufacture all their parts in Switzerland by hand - it's impossible to get an exact replica of one of those. If you went for most Tags though, they tend to be proper replicas.
It all depends on the movement the original uses - you would need to do a lot of research first. If the original's movement is from China, chances are that guy can replica it.