Help! odd headset part needed
 

I need a part for a Miche roller bearing headset. For the upper bearing set, I need the thin steel race that the bearings run on, mine is cracked. Not the part pressed into the frame, just the thin steel race. If you know where to find one, or if you have on sitting in a drawer, your help is appreciated.

I think they are the same as used by Stronglight.

New Stronglight Needle Bearing Bicycle Headset Cup Kit Complete 1 0inch | eBay