Glad to hear you're started, Frank!
I spent all day sanding too, but on the outside of the fuselage! I made a few problems for myself when I was removing the parts from the sprues, but luckily the marks are only on bottom. There are sinkmarks in the fuselage as well, down on the very end of the fuse, but I think that I've got those dealt with.
This WWI stuff is stretching me, for sure!
Stephen-
What kind of paint did you use for the Hellblau on your DIII? I'm mostly an acrylic guy, so let me know if you know of a good match!
Rafhart- Awesome! Can we see some more pictures?