I havent read the whole thread yet, but I looked at some cute, small, generic packs that go on a belt, little belt packs. You could wear it at 8 or 9 o'clock. I even saw one that I really liked, very generic, that was for your gun and a mag...and had quick tabs so you could rip the front down and open it.
Select Carry Pistol Pouch | Bags / Backpacks | 5.11 Tactical
Otherwise, as I said, I've seen many small beltpacks for cellphones, small cameras, etc that would easily work for a mag.