Most numbers were probably listed with the full weight of the body and accessories rather than a bare chassis. And softer springs, whether lower or not, can actually rise up higher than lifted springs, when no weight is on them.
But having said that, there are probably a bunch here that have either taken that measurement, or might even have one sitting around they can measure.
In the meantime, do you have pics of your setup? Sometimes you might find someone here that can tell by looking, say, at your rear springs, that can tell you what you've got. Front springs are a little more vague, but you never know.
Paul