I am in the process of moving in a doublewide and I would like to build a shop or at least know where it will be someday, for utility purposes. Would it be a bad idea to go ahead and shoot the grade where I want it and square off the 32x40 area? I would also like to go ahead and set all my post and go ahead and order the trusses and put a metal roof on it. And when I sell the trailer I live in now, I would like to go ahead and pour my foundation and close it in. Im just not sure if there would be a problem doing that or not.