Here is a link to a reasonably priced solid setup for you:
And I would highly suggest a box built to the exact specs of the speaker you choose. You should determine the speaker and amp you want to go with, then find a box for it. I'm all about doing car audio the right way as well as many other members here are. We have made plenty of our own mistake with cheaper brands and such.
Current Performance Mods: FSWerks CAI, Custom 2.5 inch Exhaust, SCT xcal 3 with Custom 93octane Tune, Rota SlipStream 13lb wheels, FSWerks 4-1 Race Header,High-Performance Tires,FSwerks Stress Bars, FRPP Suspension