I wanted to have lower and upper skin in one piece. I give it several attempts before give up. Its compound shape made waves when assembled:
So upper and lower skin have to be split in two parts. When carefuly assembled and burnished, joints are not so noticeable. Texture will also help to hide them, because they are placed at paneling lines:
Rest of the craft is piece of cake - boxes nad cones
, except of eggshaped engine tips. Unfortunately they are prominent parts of this craft visualy. I will not bother with it now, it will come later.