The way a Great planes Supersportster is done is easy and light. It is done with 1/8 by 1/4" balsa
strips. these are supported about every 8" with a half moon shaped and notched support. Then you cover directly on the stringers with no sheeting. This is easy and lookes good to. The turtle deck will have a neet shape
with the stringers raised through the monocoat. later daveo