Build Your Own Baseplates Anyone

My base plates are all 1/4" steel, gusseted back to the main frame bolts. The frame steel is the thinnest metal, but not sure its the weakest point. The way the main frame tubes are built, and if the bolts stay tight, I can't see a weak link anywhere. But I would still think the law would call for the safety straps going to some part of the original main frame, and not just the bolted on components.
The last jeep I flat towed, I ran cable loops around the sway bar, only because I thought it was required. Now they will be hooked to 2 fabricated brackets that are bolted to the base plates.