[meford4u]

I don't know if this is going to help you, but I will give it a shot.
I believe in prior postings you have 18" rims. Our Focus has 18" rims and the KW suspension coilover variant. The kit lowered the car 2". I really wouldn't want it any lower or else your scraping everything, and with that nice new bumper, that would be a bummer.
The KW kit is nice in that the ride height and suspension are adjustable, so in the winter we can raise up the height for the snow. Like I am going to drive it in the winter, but you get the idea.
As for cost, I really don't know, but you can enquire through the focustuning site.

Oh, and the car handles like it's on rails. It's unbelieveable.