Here is what I ended up doing:
1. Trace the cardboard templates on to large E size paper.
2. Go to Kinkos or some service outfit and the latest E size plotters all
have an option for a scanner. This will create a bitmap image.
3. Open the bitmap image in Autocad or similar load the bitmap image in as a layer.
4. In Autocad, create a spline and use the mouse to click bitmap image.
5. Turn off the bitmap layer and you are done!
I got that solution from the support site at
www.mis-group.com