I want to be heard from BLOCKS AWAY....which subwoofer setup should I go with?

i would do the 2 alpine type R 12's because they will have the more usable power out of the amp. I also would recommend the P3's as they are 500 rms but both brands of subs can take a little more power than what they are rated. I would put them in a ported box and wire them in a 2 ohm set up and you will be heard a block or more, make sure you dynamat your trunk otherwise people will be hearing a rattling vehicle before they hear the bass lol