RE: Glass/balsa/glass laminate fuselage
I've done it on tails and wings, but never a fuse, especially something with compound curves. I would think you could piece it together with preshaped balsa having the grain follow the curve. I would almost try to bag the alcohol soaked balsa in the mold and get it to hold a shape. Then take it out and start your layup. At least then you won't get half way down a road and have issues.