I think the bullet loading icon should remain. The ammo icons aren't solid enough to be clearly noticable.
Although I guess you could go inverted and make the background solid and the icon transparent.
I like the idea of the pilot item icon appearing in the GUI of the affected component, to inform the engineer.
Also, the helm idea does look cheesy, I try to make it look low-tech, but it looks like something that belongs in Fallout rather than steampunk..
To be fair, it was just something I doodled with, so an actual implementation wouldn't look anything like it..
Because I do still like the idea of having a similar indicator located somewhere, but not in the middle of the helm..
Something based on a flipclock or the same mechanic used in slot machines(?) could be cool.
If not for the pilot items, then something displaying speed/altitude would be awesome.