Stephen,
A. This is the strip-down kit by Eduard (a full plastic kit in 1/72 from which you take some of the parts, and three frets of photoetched brass that consist of parts for the wings, fuselage, tail, cockpit, and so on) so the wings are a "wooden" spar with all of the supports showing. The only "linen" piece on the kit is a part about 1/2 inch square behind the seat that is essentially the back wall of the cockpit.
B. I am building this as Richtoffen's all red plane. The parts that are going to be red are the kit's plastic engine shroud, center piece for the middle wing, and the photoetch "fabric" at the leading edge of all three wings, side panels (outside), and top of the cockpit (again only the outside). I will see about getting some photos soon to better illustrate what I am talking about.
C. The trouble parts could be described as the union bridge as they would fit between supports on the bottom of the fuselage. I do not mean the wing tips that would be the furthest away from the fuselage.
D. I am glad that I am not alone.