[Smokin Gator]

There are no end to the designs you can use. A brick U-shaped pit can be super effective for everything from pig roast to oyster roasts. Get a piece of steel for the top and front and you can really control the temp pretty well.

Another thing to consider is a La Caja China. They are relatively inexpensive and pretty versatile. You can add a smoke pistol to them to get the smoke flavor, but for whole hogs I don't find you get much anyway.