This is just a pure guess but knowing these lasted for 3 days, that they had these were medium to highly wanted, I'd say there were around 10,000 decks made. That's what I think. It isn't one of the rarest, but it isn't a really common deck. So I'd say something like that.
Now that they will more than probably do multiple runs for resellers. So they can certainly go up to 20,000 decks or more.