I posted some info about these connectors in the stax thread a while back.
There is one vendor with stock that has a $25 minimum purchase. They sell only connectors, so, hope you need a lot of 'em, or some kind of connector anyway. You'd have to order 13 of the female connector to hit the $25 minimum.
Allied will have more stock of the socket in, iirc, october.
OTOH, Allied recently decided that they have a $20 minimum order. I'm mulling over whether to just buy a split order of male and female parts from the other vendor (who's name escapes me, but is in the stax thread). At which point i could sell onsey-twosey to interested parties, maybe.