So now that I went and built a box I got a good deal on 700 lbs. of weights. I'd like to just make a bracket and hang them rather than running the box. It's just less of a hassle to sling the just the weights rather than the weights AND a box. How should I hang them? Im thinking of having a steel plate welded on to the tubing coming from under the truck so its flat, than welding angle iron on it so the weights will "lock" in, and then straping them down.