This is my very fist post, and my very first build. I am looking for as much advice as I can get, from the people that have learned. I just purchased a 500 gallon diesel tank that has sat empty for the last 7 years. I do not know the dimentions yet even. I will hopefully pick it up tonight or tomorrow. I will also get a boat trailer later this week. I know I want to do a reverse flow. The questions that I dont have answered yet are...firebox in the back, or to the side. A tank of this size unless mounted in the center of the trailer will be side heavy unless counter balanced with the firebox in the rear. I could center mount it and have the firebox on the end, but want easy access to the meats inside. I am also thinking of adding a vertical smoker to the end as well. I am in no rush to complete this project, but want to have an amazing smoker when completed. I will probably add lights as well. Any ideas would be greatly appreciated.