Here is a link to assist with BOM - our team already has field side walls and the driver stations built from previous years so they are not included. Also, this plans for only one of the 8 defense elements for the field. You may want to build two of each. Estimated sheet totals of plywood and 2X4s are in green cells. We also use OSB for some vertical walls on some elements.
https://drive.google.com/open?id=0B6...HpPRDI3U21XeUk