A very resourceful and nice build. Having used old brake rotors as a base for a couple other projects, including a 500 watt quartz work light around 5 ft. tall, I'd say this unit would be more than stable enough to not tip over if you let go of a set of barrels on the upright post.

Voting for anti-gun Democrats is dumber than giving treats to a dog that shits on a Persian Rug