While MrW is busy building I am starting to get things fitted for the trip. I found these MK2 Rocket boxes at an army surplus store in Idaho. They are complete with water proof gasket, removable lid, and 6 heavy duty latches. They will be great for storing our clothes, camping supplies tools and spare parts. The cooler and jerry can fit perfectly behind them.
http://www.armysurpluswarehouse.com/categoryDetail.cfm?catagory=10&start=6