I've made a stained glass memorial window (leaded) about 54" x 24" by 2 " with a built in thin LED panel the entire piece weighs between 50-60 Lbs. I'm looking for advice on how to hang it. I won't be installing it my self as it all be exhibited at two galleries and then make it's way to the subject's family where it may hang in a school or community centre. I want a system that is easy for even an inexperienced person to understand. My first thought was installing a hanging wire of airline cable on the back and providing a heavy duty hook but I'm not sure that will be strong enough. Suggestions?