[misterjason]

Are you set on the focals? I ask this because I had the Infinity Kappa Perfects 6.1 in my truck prior to installing the Focal 165K2Ps and I think for what your budget might be, the infinity components might be a good deal. Currently I have Focal 165cv1's in the rear and feel that the sound from them is more muddled that the beautiful sound being emitted from the 165k2ps.

Back to the infinity's. I think they sounded really good for what they cost. Around 270 if i remember correctly.

For your bracket/adapter, I would make one out of mdf. The plastic ones will prolly resonate like crazy.

Just don't go ordering Focal's online. I have heard bad things about those.

I just checked the Infinity perfects on hookedontronics.com. They are 208 a pair. Something to think about.