Cool video mate. Looks like an awesome mod. Just saw your other mod as well; will be sure to check out both. You mentioned the body armor; I reckon it would be cool; if you had the body armor, then you are wearing it, just like you can do in the 'Character Component Mod'.
It's funny you ask, because I actually tried that mod when I couldn't get this one working, as I already use a couple of Hippie's mods regularly. The main difference is that my mod does not send Niko into ragdoll, only staggers him when shot or hit with melee. This means Niko will not fall to the ground every time he is hit (which the ragdoll mod does, as it triggers ragdoll each time). Also, this mod has a chance of stagger, so Niko will not stagger with each hit, only some.