Meanwhile in the camera/lens world.. just to give some inspiration.. sorry going O.O.T but this is closely related...
Ed Mika + others (@ Ontario, Canada) knew that there were no proper FD-EF adapters / conversion kits.. that would make it possible to mount old FD lenses without extra glass (makes lens slower, softer etc.) into Canon EOS DSLRs (EF mount) and started building their own full blown CNC setup to do these brass mount conversion kits themselves and selling these in ebay... they started with FD Tilt Shift lens conversion kit (as this is a conversion kit and not adapter due the sensor distance problem that requires the extra glass)
The mount is full brass and was thinking that if it would be fruitful to ask these guys if they want to contribute the collettte into this project as well?
Discussion thread here about the CNC setup etc.:
http://www.canonrumors.com/forum/index.php/topic,2337.0.htmlpics of the setup:
http://www.flickr.com/photos/ontarian/6459076305/ebay containing the story w/ finished product:
http://r.ebay.com/m8EhDpthat spring especially looks interesting.. F1 suspension go figure? err
bought this yesterday myself + the solid built FD TS lens that I found from the local auction site (that is btw ~1.5k$ cheaper than the EF modern TS-E lens.. )