I know what you're talking about and what you're trying to do. If you go this route, make sure that you thoroughly sand the resined areas before you put any adhesives on. If you wanted to join them through screws or clips or anything, be very careful because the resin is brittle and can crack if enough pressure is put on it while trying to punch through. Also, try to find the best adhesive. I looked up 5200, and while it says it's designed for fiberglass it has a low PSI rating of 700. Compared to that of JB weld which has a tensile strength of 3,900psi. All that moving around in the chestpiece is bound to cause the wings to want to fall off, so a higher tensile strength might be better.