Help needed: calculating area of side walls

I am using Mike's Ultralight profile for my build. The walls will be sandwich construction. The inner and outer skins will be wood strips.
Would someone please help me calculate the actual square footage area of the Ultralight profile. I need to figure the lineal footage of 3/4" wide strips to mill.
Here's the link to the PDF:
http://www.mikenchell.com/TheUltralight.pdf
Any help greatly appreciated...
Larry C
Would someone please help me calculate the actual square footage area of the Ultralight profile. I need to figure the lineal footage of 3/4" wide strips to mill.
Here's the link to the PDF:
http://www.mikenchell.com/TheUltralight.pdf
Any help greatly appreciated...
Larry C