Ericp10 mentioned these, so I thought I'd put up a link to their website and we can post more as we find out more.
Their quad driver custom will be $500
Their triple driver custom is $350
They also have a $275 dual driver custom
and a $200 single BA custom
If you click on the "spec sheet" link, they don't have anything up except a generic freq. response chart (with a bass roll-off!), but they don't actually have a real frequency response chart for any of their customs yet.
Further bulletins as events warrant.