HI all. I recently bought this kit as a started build on ebay. On getting the model which had the hull started but no planks put In place I found all was not well. The model was nailed and glued with what looked like copydex glue, and I had to take everything apart and start again. The hull was double skinned In first plastic then ply. The plastic Is correct the ply should not have been there and Is either from another part of the kit or some strange added section. The long and short of It Is I'm missing the sub deck to the main deck. I have the section on which the hull Is built, the curved deck shaped sections, then I believe there Is a ply sub structure before you plank the decks. Can anyone tell me the thickness and material of this sub deck?