This is my current project now that my target bar is done. This is Moab's Mini-Inventory.
This mod has all the bag slots, Ammo with #, Ranged weapon slot, LH & RH weapon slots, and both Activatable slots.
All this in a tiny package not too much bigger than the Compass.
Problems I see at the moment is that I cannot drag bags around, but I can drag the equiment, that's a minor prob at the moment.
I plan adding tabs so that you can have Coin and stats as well. If you have an idea as what else to add to a tab, please let me know here.