It's a close call. I'm dropped deeper than Eibachs and DIY'd the install so I just did everything at once since I knew w/ the aggressive drop I'd need the F&R kits. It's easier to install the arms, toe bolts and springs at the same time so that may be something to consider. Lots of guys dropped on Eibachs get by w/ the stock arms possibly running camber a bit out of spec. You can install the toe bolts pretty easily (if you have a dremel tool). If you want to just get the springs and get it aligned, then if they can't get the toe in spec just buy the toe bolt kit (it's about 50 bucks). You probably won't need the camber arms if you don't mind running a bit excess camber (if they can't get it in spec).

 

pics of drop/stance?