mega cab

I'm new to this site. Im looking to build a nice system in my 2016 mega cab. Thinking about fiberglassing the back wall to gain as much air space as possible and 3/4 MDF the face. I believe I can get about 6cf maybe a little more. I would like to run 4 soundqubed hdc310s on 2 sq4500s. Originally...

2006 Ram 1500 Mega Cab