74fuely,
You should look on this Italian Forum
www.cronoscalate.it/forum & click on `Storiche` & scroll down & you will find a thread where they are discussing BMW 2002`s used in hillclimbs & mention Trento Bordone.
I have raced against Marc Hennerici in Germany this year, I am sure it would be possible to get a contact for him if you need it.
Alex.