I also inquired quite some time ago. At that time the project was on hold, and I guess it never got off the ground. They were talking about using SK Grimes, and I don't know if his death had an impact. His shop is still open, but I have not heard glowing remarks, as I did when he was alive.
The adapters are available from several sources, of course, but very expensive. Again, some are problematic in use. Much depends on the quality of the original mount used, but the final machining must be VERY precise. I'm not certain if it can be done at a reasonable cost. I'd love to use my 50/1.5's on my M3, but they may just live on Contax bodies in my lifetime.
If you know of a machinist/designer who could assist in the project, it would be a big obstacle overcome.
Harry