hello Georg, im in Köln so not far away from you.Im hoping to setup my own composite parts workshop soon so might be able to help you out in the future, I will be starting with small parts in prepreg then onto larger car parts using infusion, as prepreg is expensive.
Good luck with the project! Ive got a 1989 honda crx that needs some work, you dont see many jap cars over here in NRW.
Garry