
Well, I found one, unfortunately, thanks to the good ol' AFA, it's going for an asking price of $1250 in a BuyitNow auction on ebay.
I sure would love to add this incredibly rare variant to my collection, but not at that price, especially since I open all of my figures for play and display (that's why AFA is a no go for me).
Hopefully I'll stumble across one someday for a more reasonable asking price (though I fully expect that it will still cost in the hundreds of dollars range given its rarity).
By the way, for the curious, the gallery for this rare gem can be found here and it also contains a very informative article regarding the history of this unreleased variant.