Hi Juergen,
I am happy we can help you with your English, although I must say it is very very good already – a lot better than my German!
I have the same book as you (Rif Winfield's 50-gun ship), however, I am currently drawing the frames and keel sections for a 74-gun ship based on the Bellona Anatomy of the Ship book. I am drawing them in Illustrator to create accurate templates for cutting. This will be my first wooden period ship. I have experience scratch-building other ships/subs but not of this period.
Looking at the Anatomy drawings of the Bellona, it appears they also show every other frame too, which will be helpful.
Once I get a little further with the drawings I will begin a build log too.
Your ship has inspired me to take the plunge and do it after much thinking.
Best wishes
Chris