This is a current thread -
http://www.bbq-brethren.com/forum/sh...ight=whole+pig. They say to inject and rub. I imagine any sort of pork rub would be ok.
Not sure how you'd marinate a whole hog - maybe in a hot tub? hehe
Heat placement could be accomplished by moving coal around (if direct heat) or foiling certain parts (if indirect).
Of course, I've never done it either.