Need enclusure design

I need a build plan for a box for 8 12inch subs would like a v wedge 4 on each side and center slot port here is a rough sketch of what I am looking for. I will of course pay for it but would like a couple views and a cut sheet as well as expected cu ft and such. The sketch is a topview.Tuning anywhere from 36-42 range is fine.
http://oi45.tinypic.com/2m2aqth.jpg

If you inverted each pair on the outside of the box to avoid any clearance issues inside the box at those angles, and just ran the inside subs normal, you'll be able to get a little more port area in there.

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Originally Posted by RAM_Designs

If you inverted each pair on the outside of the box to avoid any clearance issues inside the box at those angles, and just ran the inside subs normal, you'll be able to get a little more port area in there.

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I dont care if they are all invertred or none actually whatever works best is fine with me.Will be running RF hx2's btw have 6 now looking for 2 more