Yes, people. I abandoned this build. The half-finished frame lies in the bin. The printed pages are in the waste paper basket. I had serious trouble with the skin of the plane. It probably is my own incompetence, since I saw Maxim's finished version, which looked fine.
Fact remains that to me, this hobby is meant to be relaxing, a means to clear my mind of bothers and most importantly, to have fun. This build was troubling my mind and wasn't fun any more. So there.
What is next? Your guess is as good as mine. We'll see!