if you want aggressive stance, trust me....you wont be happy with any of drop you get from spring/shock combo....
its like a drug...once you lower a bit, youd want to go lower for even more aggressive look....whatcha gonn do then? forget about ride quality...its not like you're gonn get 'butt-hurt' n e ways...you'll get used to it...
i DD 10f/8r...pretty stiff compare to teins and other coilovers out there....
many members here DD ksports/amr/f2.....
if you're truly function over form, then go with koni yellow + ground control....yes, coilover again....
as far as camber kit....you want aggressive look? that means you're slamming your car....at least closing the gap...you might get away with front, but you are stuck with getting rear camber kit n e ways, since there are no camber adjustment on our stock arm....
but then again, you never really know if you need camber kit or not till you actually drop/get alignment....alignment is something you just never can predict even with same make/model/year/trim....