4 12s in a hhr enclosure help

[Spldad82]

@Joe XI see you have alot of knowledge on enclosures. I'm doing a budget build in a 09 hhr panel. It has no rear seats. Only has front buckets. I have 4 power acoustik gothic 12s from wal mart. Will be powered by a taramps 3k for now. I would love your input and design opinion on how to build and design it. I would love subs up port rear. I want it musical and as loud as possible.  Will take input from any enclosure builders as well..

[Joe X]

What are your max box dimensions that will it in your vehicle?

[Spldad82]

@Joe X it's 37 side to side, 30 inches from roof to floor and 60 inches from back of front seat to hatch door. Wall or no wall. I'm considering both.