Hello Willi:
Your interior is coming along nicely, flu bug notwithstanding! Your fuel tank and all the extra plumbing really looks the business and will definitely add interest to the cockpit. The wing decaling is extremely tedious. I have done two of these, and on the second one, I did the wings first, just so I didn't have to be tedioused out by the time I got to them. I used the W&W decals and it really dressed up the wings. I used the blue tapes, just because, well......just because I felt like it. Authentically they should be the light colored ones.
Looking forward to seeing you work through this and how your interior comes out. I wish I had one more!

Best
Mark