Drop spindles will lower the front 2 1/2 inches. They don't come in any other height. If you're set on 2" you'd have to go with the weld-in height adjusters for the beam. (I suppose you could use drop spindles and a 1/2" taller tire too)
For the rear, you can install adjustable spring plates, reindex the torsion bars or both. Reindexing will give you any drop you want in increments of about 7/32". I'm not sure what total amount of drop you can get with just spring plates, they're really more for fine tuning.
Search for the instructions on reindexing the torsion bars. Here's a place to start: http://vw.zenseeker.net/Wheels-TorsionBars.htm