the first picture is B&G springs, which has about a 2" drop. the second picture is intrax springs, which will slam you car with a 2.5"+ drop.
did you read any of that thread as you were going through it or did you just glance at it and ask more questions that were already answered. if you want to go that low, you probably dont want to go with lowering springs and you would be better off with coilovers.