I just put about 20 sq ft of deadening in each of my doors and I still think I need some more, mainly on the back of the door panel which I haven't done yet.

Anyways, I would lean towards #2... are kickpods an option for you, or do you want the car mostly stock looking? Moving the midrange to a pod and going dedicated midbass might work.

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Alpine IVA-W200
Alpine PXA-H701 optical
Blade SE6175
Morel Elate 6 3 way active
Sony XM2000R
MTX 12" 7000 x 3 freeair

Finally moving into the 21st century...