Help building ported box for 4 jlw1 12s!

[Cjay199]

Need help building a ported box for 4 12" jlw1s. Each sub should have 1.75 cubic foot of airspace. Max dimensions I'm working with is 40-50 inches in length, 15-20 inches in depth and no limit on height but preferably no more than 30. I'm looking to get spl I wanted to tune it about 33-37. I want sound that's loud but still clear. Btw it's going in the back seat of ranger so it's not much space to work with so it needs to be taller to make up for the little depth I have to work with. I'm trying to get a design made. Any help would be appreciated.