Clueless

Any help would be greatly appreciated. I recently ordered 4 sundown E-8 v.6 D2 with a sundown SFB 1500 watt D class mono block amp.  It's going into my 03 f150. I am trying to get a box build that is as low profile as possible and get my 35 HZ tunned. It calls for .65 cubic feet per sub ported so roughly 2.6 cubic feet overall for all 4 woofers in one box. I'm open to building 2 boxes with 2 subs per or 1 large box. Preferably subs facing towards floor board. Thanks for any help.