There's all types of fuel cells,if your fuel pickup is on top,there's probably a hose fastened to it on the inside going to the right rear corner of the cell. this you could turn 90 degrees and not greatly affect fuel flow. If it is encased in metal,you could cut an opening and drop it straight down,with the top flange bolted to the floor,watching for ground clearance of course. It woud be good to form something around it to support and protect the bottom. Hank