Need help building a System

[XxMaTTxX32756]

I Have decided i want to upgrade, about half a year ago i installed a New Alpine head unit, and type S speakers in the doors and the dash, but now i am thinking about adding some subs, I don't have much knowledge at all about car audio, so i need yalls help,and i have alot of questions. I have right now two Brand new Kicker CVR 10 inch subs, but i have somebody wanting to buy them, If i decide to keep them and use them, what would be a good amp to push them, or if i sell them what would be some other good 10 inch subs to get and what would be a good amp to hook up to them, I am hoping to get me a seat of seats out of a 2006 mazda 3, so i am planning on getting a box/console type deal built to house them that goes between the seat. So depending on which subs i have would it need to be ported or sealed? by the way all of this is going into a regular cab, and i know it will probably rattle so i am going to do some sort of sound deading matterial like dynamat, even though ive heard it is quiet expensive. So should i cover the entire cab in it or are there just particular parts that need to be covered such as roof and doors? I need all the help and advice i can get on doing this guys, thanks