The plans can be downloaded from here: https://fpvwra.net/wpcontent/uploads...

This is the FPVWRA Spec legal foamboard airplane. This is 100% free to share and build or even produce if you want to make your own kit. I am giving this free of charge to the RC community to allow the foamboard builders to be able to race in the FPVWRA's most popular class: Spec wing.

The DXF file is the one I used for my CNC laser. The motor mount can be made from 1/4" or 1/8" plywood.