Ya that it is not good - sorry!! I do not think that the items you mentioned would do much to repair it. Without glass, that it going to be a very weak spot (and develop quite the hinge). Where is the spot located along the limb? Another piece of glass glued over that spot and then blended into the limbs might make it shootable. It would be a stiff spot, but depending on where it is at you could live with it - especially if it is a low poundage bow. Other than that, I have no ideas other than start a new one. Good luck on whatever you do.