Is that smoker large enough for a whole hog? If its the one i'm thinking about, then i don't see how it would fit considering how most pig smokers are at least 4 feet long and 2 or 3 feet wide (and that's real tiny). Then again, the smallest hog I've ever seen anybody cook was about 75lbs. Any smaller than that and their shoulders and hams are very small.
Might I ask why you want to cook a whole hog? I've done it many times, but it is a lot of work. If I'm looking to feed pork meat to 50 people, I'd much rather smoke 4 or 5 boston butts than a whole hog. Then again, a whole hog is one of those neat, special kind of things.