I am also looking for these items for my pre-war Durkopp project:
. metal headbadge (triangle with script capital D), . bottom bracket and chainset (very unlikeley, but who knows) . pedals . Scheeren stem, 10cm or so.
The headbadge is the most critical piece. I can re-finish it if needed. Has anyone been successful with repro metal headbadges in small quantities?
Dave Ross
Portola Valley, CA