Young Gun's 72 Swinger

I need help on this:

I mini tubbed the car and want to take full advantage with moving the springs inboard but it seems with my 2 1/2" jegs exhaust kit and stock gas tank that there is no room for this work:wack:. The exhaust comes up over the rear and runs straight with the frame and I can move it some but if I did I do not think I could keep that gas tank? Any input and pictures would be appreciatd