Mark out the large .8″ sheet of Divinycell foam for cutting into 2 sides. It is over 104″ long so perfect for sides without the need to join.

The mark out contours per plans. This took a while as lengths are given every 10″ only.

I worked out coordinated in between and then found the long sanding block helped join them into a curve.

Full size sheet

Lots of care

Slowly learning