All good ideas.
In version 3, the armory base menu will have links to weapons, upgrades, etc. These menus will also interlink to others.
As for this being a full hud, let me come up with a few more hud elements, such as health, etc. Then i will send them to you.
As for reducing the number of items, that would be fairly difficult. If it uses a mouse+drag, one could click the breadcrumb to jump back. I like the idea of clicking the center.
The structure symbols were something i considered before, but were a bit hard to deal with. I have some structure images, but they really dont look good when blanked out. If someone could give me some good structure images, eg a turret from the side, etc, as well as their alien counterparts, i will incorperate them into the V3 design.