Thanks for the feedback, however I need to add more to this for clarity.

When I was at the LBS we tried an old Dura ace with sealed bearings. No go, couldn't even get the top locknut on.

Once I got home I started doing the research to find out what would work. I believe I have the standard ISO 1 inch threaded headset. My problem clearly seams to be stack height. From what I've found out about measuring stack heights (measuring all visible parts when installed) it would put mine at about 32mm. I spoke to another store that deals with vintage bikes (no headsets available) said that open ball would be my only option as sealed adds to much height.

Sorefeet, MY LBS noticed the Tange in his catalog but said it was low quality, however with this very shallow stack height I'm not finding much else out there.