If you have a spit keep it whole, if you don't quarter it. What do you have to cook it with? High heat kinda deal, or an offset smoker. Either way there are numerous ways to cook this puppy.
One that a fellow in my neighborhood uses all the time is to inject with bbq sauce, rub down with a light amount of seasoning and he cooks it at high temps on a rotisserie.
More info on your cooker and experience would help out here.