No need for the plans for most of the build. The only time that I used the plans was for the tail feathers, and control surfaces.
It may seem strange, But just put all of the parts together for each wing half, make sure that they are square (and they will be), then lightly tack with thin ca, then check again before final gluing.
It's amazing that you find that everything goes together perfect.
By the way, I posed this picture in the other thread. My wife is pi$$ed at me due to the sun squint on her face!!