Well... I guess we're going to do a little experimenting here. Got the 02-04 OB Eibach springs (7712.140) ordered this morning. I found them at a number of online retailers (including JDM Hub and eBay). I ended up ordering from Stillen based upon free shipping and reputation.
Hopefully this will achieve the roughly 1-1/2" drop (catalog says 1.2") that I'm looking for.
My plan is to get the springs in hand first so that I can validate fitment prior to getting the other bits ordered. Stay tuned...