Just tossed this together for another local here.
2 DD 9515s D1
(will be adding a second amp and mids/highs later)
Went into a 2002 Forest Green Escalade(will get pics later on)
Here is the system we did..took about 3 hours from start to finish for him.
Vinyl matched to the truck with dual Kerf port.
Batcap 4000 and a "quick" wire job to get him up and running for a few days until he gets the rest of the product he needs.