The problem isn't whether the anchor in the ceiling or the lines are strong enough - the problem is the stress on the polystone model from it's weight hanging over time. On the ground, the fuselage will support the wings (we hope) but if the plane is hung by the wings, will they support the fuselage? I don't know the answer, but i bet we find out in several months as people suspend them. I suppose the fuselage and wings must be equally supported by mono line and checked for stretching and unequal loading every so often.
Terry