a camber kit is needed if you ride w/ your car lowered down enough to tow the tires in to wear your tires out extrtemely fast.
it's a great investment to make. I would say get a SKunk2 front camber kit and use the wahser method for the rear.
As for a place to but the Eibach springs you could try als
www.ebay.com or
www.thepartstrader.com
Hope this might help additionally..
