Found this N6a auction on e-bay. It's not my auction, I came across it, but already have one, so I figured the rest of you might be interested. It's a Dutch auction, 4 are available, there's only 1 bid at the moment.
I THINK this may be the guy I bought mine from (at a show). If it is, he's reliable.
(Karl's Kabuse, IIRC.)
Peter King in NY