In those pictures the springs are in the factory locations, hung with factory hangers & shackles, and the rear end is the factory piece at factory length.
1/2"-3/4" clearence should be all you need.
They are a tad bit wide to lower the car where I want it to sit. They will work with the car at factory ride height if you do not mind cutting/rolling your wheel lips. Plenty of clearence on the inside, however I am not willing to cut my wheel lips on the quarters so I will probably have to switch to a 15x8" wheel with a 275/60R-15 tires. I would like to get my wheels/tires tucked 'under' the car.