There are also products made for scuba diving/snorkeling that are excellent in keeping the mask free of fog. They're inexpensive, maybe something like that would work. I've used the following Sea Gold Anti-Fog and it works well: http://www.scuba.com/scuba-gear-54/028053/McNett-Sea-Gold-Anti-Fog.html
The trick in using this gel is to apply a good layer, then quickly rinse with fresh water, and it leaves a crystal clear film that does not fog.
Also, in a pinch, I've been told that you can simply spit in your mask, rub it around and that will keep it from fogging. Divers swear by that, but I have not tried. Maybe spit on your cam & let us know how it works?
Elk have been killed close to roads where they could be loaded whole into the bed of a pickup. But it doesn't happen often and I'm not sure that is the experience that I long for. The type of elk hunting that I prefer requires rigorous physical exertion that can cripple someone who is not in shape. Being a college hockey player I have to be in at least fair physical condition most of the year but when one of my buddies got back from the Navy Seals he changed the way I think about physical...