More pictures.
I really think there is a lot of room for lightening. I figure holes in the ribs fore and aft of the main spar and shear webbing could save a few ounces. Holes all through the fuselage doublers could save a few more ounces. I'll go over the model and see but I think there is probably a good half-pound worth of weight to be saved just by sticking some holes in the plane.
