Bob .. Ken ported klh10 to NetBSD/alpha for twenex.org .. I'm sure he has 
incorporated those changes in newer source.

> Situation: DS10, NetBSD 1.6.1, KLH10-2.0a - Good NetBSD kernel for the 
> DS10, no USB OHCI support, 1GB or ram, many GB of disk.
> created a bld Makefile for NETBSD Alpha based on OSFAXP Makefile.

If you can't find the source publically, contact me privately.