Yes, it seems they were in stock for a matter of minutes. I refreshed the page after placing my order and they were gone. Additionally, my account says "order under review," so I imagine there's a chance it will be cancelled, as one previous order of mine has. Though, that time, by the next morning my order had already been cancelled while now, 8 hours later, it seems to be in limbo. I'm not getting my hopes up; afterall, it would be a back up body for good 'ole number 00007X which is serving me nicely.
Maybe these "pre-production" early numbers were build more carefully?
-Josh