I can't figure out for the life of me what I did with the sales brochures that came with my 1980s Komfort... If I could find it I could shoot you a email with with scans of the brochures from 1984 which would be similar if not the same.
Mine no longer has any of the original aluminum skin and I didn't bother to recreate the logos. You can take a look at my before and after pix in my profile.. (the before has the "K" that you are asking about on the front), guess I need to update my profile we have been using our "K" for 6 yrs now..
Painting on might be the better way however since you have some outlines you could take your trailer to a vinyl graphics place. Thy should be able to recreate a decal for you by using the outline.