Lane Hackers and Liberty Rogues may have been involved in the artifact trade in vanilla, but there doesn't seem to be much evidence of it now. I wanted to further pursue the dealings with the Hogosha but there was no active hogosha players to interact with back then.
I do not know where you get your figures from Dancing Lady. You're not correct about Leiden now, as it produces Counterfeit Software. Artifacts are still sourced further north in Kusari, not in Galileo. Your figures about the artifact trade in Liberty don't seem to have any solid basis either.