Looking really good Jan. Be sure you get the wing dihedral right before sticking spacers in there. Agree with Wojtek on the well paint. Looks like 66 to me.
Put some spacers in, pics tomorrow. Have your opinions on to put wider ones in, or sort the last of the gap with the wings, if the angle is or isn't right...
Here ya go Jan, KG 13A and B control columns, seperate and in situ. Hope these are of some help. (Source: German Aircraft Interiors 1935-1945, K.A. Merrick)