Not trying to be a debbie downer, but he only sells the front bolts ($70) and the kmac kit is around $400. The bolts will not get you back in spec if you intend on lowering much at all. Most of us here have them on our cars, myself included, and I am still .4° out of camber spec.

Don't let it slow you down, the rest of the components you have will yield an awesomely responsive suspension, but I just wanted to give you the real deal before you got further into it. Post pics when you are done