Wow, that looks so good! Can't wait to see the final product!
1" quick release buckles? Attach one end with a 2"-3" trail piece of nylon webbing to the underside of the chest armor and the other to the underside of the shoulder piece. Contact cement in place and reinforce. Shoulders can then snap on and off as needed. I have plenty of 1" buckles and nylon webbing if needed. Just a thought.Still not sure how I should be attaching the shoulders to biceps and the breastplate to the chest. Magnets just don't seem like the can hold. Gluing them straight on means harder to store.