Okay guys, I like the way you're thinking.
Brush ... I like the Narcan call. 2mm pupils and slow shallow breathing. Only one thing, would you want to push the full 2mg at once, or space it out 0.4mg (x's 5) or 0.5mg (x's 4)? If you hit him with the full 2.0mg, you might run the risk of completely waking him up. Thinking about spacing out the dosage over time, just enough to bring up his respirations, might be something to consider.
Trapper ... Good call on the Dextran/NS and treatment plan. This guy definitely has some major trauma to deal with.
Bandaid ... I like the call about securing the weapon in a paper bag. As Brush mentioned, the normal route for dealing with a weapon on scene, is letting PD handle it, but in this scenario, PD isn't available to do so, and of course, we wouldn't want to leave it laying around, and as you said, it is evidence.
PediDoc ... You're welcome.

These are cool to do, and getting everyone else's POV and treatment plan.
Now here's something for everyone ....
Yes we do have a weapon found with the Pt., and a bag of "Potpourri", presumably drugs, but go back and take a look at the photo, and look closely at the wound where the Pts. nipple is supposed to be, and look just laterally of that wound at where the "exit" wound begins.
Remember, it is a "Stormy and rainy" night.