I hear how hard this is so many times, anyhow look at this. Soo here is my idea; just make shelves - call them armor Hooks - reduce the size to 1/2 (1/4) the width, remove the legs holding them up to reduce the vertical height of the shelves so they can be stacked much closer to each other, Make them transparent or craft able to the color of the walls. You can take the gloves and instead of side by side make them father apart for left / right. The gloves might be the sticking point as left / right might create more problem but they could be totally separated???? Now some armor like that rotten set need to be adjusted to vertical / horizontal not slanted at all. With these "Hooks" we could display armor sets along the walls to give them the appearance of a standing set.
Because this is Awesome and a lot of work went into Rinzai's places, but they could be SOOO much better.