my SUV setup

so i am riding in a 1995 GMC Jimmy SLT 4x4 I plan on making this thing as nice as possible i currenly have blue led lights under and inside the car I also have a new eclipse head unit along with digital audio 6.5 in all 4 doors. Also got some euros on the way. I also have a cheap amp pushing a 12" 400 max watt pioneer enclosed sub. This is little bass but enough to compliment the rest but i want some extreme shaking. Like the kind you feel shaking your body even when you are outside of it. I am going to purchase the 1800 rms watt Hofonics amp and run it a one ohm. It is going to be pushing 2 Mmatts p3.0 wiring the voice coils and speakers in parallel. this will preduce a 1 ohm load i believe so anyways. But yeh pretty much i just want to know if there is any flaws that you can think of with this system. oh and by the way i am currently running 8 guage but am going to upgrade to 0/1. What size cap am i going to need with this and am I going to NEED to upgrade the battery or alternator. Do you guys think this will bounce quarters on the roof. Are these speakers good quality i know they are expensive but i want my system to sound good. Oh and how much Dynomatt and stuff like that am i going to need and where all am i going to need it. Thanks for all your help guys i apriciate it.

can someone help me answer at least some of these ?'s please thanks yuall

first off, why are you going to buy nice speakers like mmats and run them with a crappy amp. get a mmats amp to push them. as for caps, i really wouldn't recommend one unless you like the way they look or somthing. the money you spend on a cap could be easily spent on getting a second battery which would actually be of some use. as far as dynamat, you need to hear the car first to see what's making noise.