So the recently recovered source code to Darwin 0.1 corresponds with the release of the PowerPC only OS X Server 1.0. However as we all found out, Darwin will still built and maintained on Intel, as it was a very secretive plan B, in case something went wrong with the PowerPC platform. Being portable had saved NeXT before, and now it would save Apple.
So with this little background, and a lot of stumbling around in the dark, I came up with some steps, that have permitted me to build the Darwin 0.1 kernel under DR2.
This is beyond awesome.