Sorry my guy but I have no plans on selling it any time soon. I have no misprints in my collection at all so since this is my first I wanna treasure it, particularly given it was such a lucky find.
That being said, I did stumble across a guy on deviantart that had one. I don't know if he's still active on his account and he seemed unaware of what it was or the value it had, but I could link you the post and you could try getting in touch with him?
I've only found evidence of four existing so far; the one in your topic, the one I found, the DA guy, and another dude who posted about having on in this thread.