Is there anyone working on an Adaptec 2940UW driver port for NetBSD/Alpha?

(We're interested in having a PC164 system that uses this scsi3 board;
I'd be interested in knowing how hard it is to port the i386 driver
to Alpha if Jason or someone else who has tried something similar has
any advice.  I'm not sure if the AHA driver implies the AHC driver is
on someone's queue....)