> One catch is the size of /usr/src:
> 
> So I'll have about a gig to play with. I can use tunefs to reduce minfree.
> Think this will be enough space?

Possibly not.  I've just done a 2.0 build with X and sets and 8 kernels.
I have:

$ df /usr/obj
Filesystem       1024-blocks     Used     Avail Capacity  Mounted on
orthanc:/usr/obj     2249983  1354731    782752    63%    /usr/obj

The sets are 110Mb and the destdir 295Mb, so just the build would fit in 1Gb.
Can you hook up an external /usr/obj or use NFS for it?

J

-- 
  My other computer also runs NetBSD    /        Sailing at Newbiggin
        http://www.netbsd.org/        /   http://www.newbigginsailingclub.org/