Hi all. I'm building my own roll bar cage for my Club Car golf cart. I'm going to use some of the designs I've seen here and put my twist on it. The problem is what material to use, black iron (HEAVY) EMT(light, but not on the strong side, maybe if i use 1.5?).trying to be safe and keep the weight down. Im leaning to the EMT !.5 tied to the frame, much better than what is on there. THANKS for any ideas.