Check out ftp://remus.rutgers.edu/pub/NetBSD/goodies/.

I was the maintainer of this anon-ftp directory /pub/NetBSD when I had
access to this site, but please note that, because I've lost access
last May, some information (like kernels) has become pretty old.

For general information about remus' NetBSD archive, see:

ftp://remus.rutgers.edu/pub/NetBSD/index.html
^^^ NOT "http"

Ken