Box help for 2 12's, weird shape!

[Xinspaly 10+ year member]

I have to 12inch kicker l5's, and im making a box for them, now, its a strange shape, but it will give it a LOT of airspace and let it fit into the trunk.. its 6.7^3 ft before sub and port displacement, as well as before bracing etc.. so my goal is to narrow it close as possible to 5..

Is there ANYONE willing to help me figure out how and where to port it with 6inches wide of port to about 30hz?

here is my epic paint drawing to give you an idea, the arrows are for which way the subs are facing..



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[Joe89 10+ year member]

and you will be able to fit this into the vehicle once its assembled? What is it going into?