This is just a short post with some resources for the Skywalker 3.8 by Baudis (the smaller version). I have sold mine but thought that some info and 3D files could be interesting for others as well.
Let’s start with the plugs for the outer two control surfaces, (aileron and outer flap). The drawing is made by Baudis. If you had the plane built by Baudis, the plug configuration is likely the same:
And here are the files and pictures to 3D-print a ballast box and ballast spacers (if you, for example, wish to ad only half of the possible ballast).