I have to say the model is grossly overweight and some of the material selections definitely born in the 80's. Amusingly things like the ribs are built up to save weight and then a slab of a bulkhead from 1 & 1/4 inches thick ply with no lightening holes completely defeating the whole effort. I reckon I can lighten this thing enormously with lite ply, GRP & carbon and getting parts laser cut so I can build in lightening holes on a lot of the parts.