Was checking a clients plans and he/they said their welded in place hood duct which is welded ion place to a pizza oven did not have to have fasteners because it was on casters. I checked the web to see what the hell was a Pizza oven on wheels and found this.
Zig, you need to do this. Then, you could just drive around (all summer while you have nothing to do) and sell pizza! It isn't difficult, I made SIX pizzas on Sunday for some friends. My guess, you'd be able to afford ANY bed you'd want to bolt to your truck, after just 1 summer. Then, sell the pizza setup to the NEXT guy with an almost-done-I-just-need-a-bed AD pickup! Or keep it, and switch it out for family get-together's and cookouts. Charles DOES get the first pizza though. Nicely done Charles!