Hello all. Having a little trouble putting together my UDS. I'm a tight wad and trying not to spend any money. Anyway. My main question for the guys that have been here. I get free drums by the truck load here. Problem is they all are sealed top. Well I've looked at junkyards, Craigslist, and the side of the road for a weber lid. All to no prevail. On to my question. While my search for what I want I stumbled upon a 24" disc off a plow. This will work for now. It has a hole in the center obviously. So can I put a stack in the center for an exhaust or does it need to be off to the side? Sorry for the rambling. Thanks in advance.