As per our phone call could I request a drawing of the top view looking down on to the ribs that make up the width of the aircraft?
If you would like I can redraw them in a auto-cad (dwg or DXF) format if you would find that helpful. My contact information is Stan McDonald 402 Mudcat Road Foxboro, Ontario K0K2B0 (613) 968-9516 Thank you for taking the time to talk with me and may you have a safe and happy flight. Regards Stan