When I was looking at Haas tables, they were IN THE PROCESS of going from Brushed DC to BL motors - they had not yet done so but were "in the process". This was during this past summer. I got mixed signals about BrushDC motor availablity - it depended who you talked to and where.
At the time, they (Haas) was running 24-7 at maiking production tables and were NOT taking "orders" for custom machines. Brushed DC were STILL in production at the time but they were not goind to be doing so for much longer. Supposedly, the "much longer" was thru the end of MY2007 but they would not guarantee it.
Your best bet is to FIND somebody who has an axis in stock - there should be some out there. I would not take NO for an answer, not quite yet as there should be a Haas agent SOMEPLACE who knows how to get rare or "special" stuff. There always is somebody who can find that "special" something that "nobody makes anymore".
Ain't it nice to know that you have a "production" item that the OEM won't "support" anymore. Who do they think they are, Hardinge/Bridgeport????