Thanks guys, I am not worried about them falling off, when I build one for my brother I will put a diagonal piece on the sides, but even if they tip, they are far enough down that they won't go anywhere.
Still a ton of work to do in the garage, I will get better pics when it's closer to completion...
Gotta add wiring in ceiling for hoist, get high lift done on single door, paint stairs/railing, paint floor, some drywall touchups, storage shelves, hoist caster storage...