I have a regular tool box for my feild box. My buddy built a 'starter caddie' and that's like gold! battery, panel, and fuel. All in a nice neat small package.. You can see it in the background of a few pics on our site.. Quick & light to lug to the plane, flight line, etc.. No need to LUG this heavy full feld box about, or bring your plane to it.. Easy to build, 1/4" ply all around