I am in the planning and learning phase of building a brick smoker and grill. I have something in mind like the famous "Wilber D. Hog" I know the basics of laying brick and know how to use the tools or even add an arch if I want to but have absolutely no idea how to cap or roof the smoker with bricks. I imagine there would be angle iron somehow incorporated into finishing my project this way. How would I go about doing this?