With the fuel cell and pump assembled we could now take really good measurements as far as trunk deck height etc. I decided to build the cell cage out of .75" square tubing. After confirming the tank size we double checked the area where we expected to place it. We decided to simply hang the cage and cell from the lower roll bar that circles in an inverted hoop from the main roll bar (basically outlining the trunk area). I cut two pieces of the square tubing and laid them in place from one side to the other. We measured out approximately where they would go and sanded down the roll bars in preparation for a final weld. After welding up the cage we placed the cross bars on it, front and rear, and marked them for center. You will notice on the side closest to you the upper cross bar is dropped down about an inch. The plan at the time was this is where the fuel lines would exit just under the trunk floor on their way north. However after test fitting the unit in place I decided having that cross bar lower limited the area to weld it to the mounting cross bar. So I cut it out and put it back at the top same as rear area. Then we lifted the fuel cell cage up through the bottom, aligned it with the center marks on the cross bars and clamped them together. When we were happy with the alignment left to right on the cross bars we tacked it in place. This left the cage simply hanging in place sitting on the lower roll bar. We had quite a bit of play front to back and left to right for that matter. We made sure we had enough room to adjust the shocks, centered unit left to right and finally welded it in place. We will put an aluminum floor under the fuel cell and then wrap the outside of the cage in the same aluminum sheet metal from the front. I am working on the straps across the top to secure it in place should the car get upside down. I also have a very cool two inch one way valve for the fuel neck. And a one way valve for the vent line as well.