5'11" is the perfect size! It's the same size as me. You can borrow it for cons and such if you want. I'm sure you can take care of it. ^_^
And you can totally airsoft in it. I used to. =3 The brown woodland camo is actually very nice, though it's so rare now I'm worried about messing it up (plus I don't airsoft much if at all anyways). You don't have much load bearing capacity though, so if you don't play with hi caps you're going to have fun topping off constantly.
And totally down for an Izanagi commission. Loves me some persona. =D