Hello, Ross.
I believe Phil has already got 80% of the right answer when I showed him the precise airfoil of Ju87 as well as the front view of the spar. The rest thing he has to do is to measure his own relics, say length-width-height of each part down to such a small part as rivets, to complete the working plan by himself. He should not rely 100% of this work on others, including you and me. No one can do it but him.