Need Help Making Sub Box!

[RedRam23]

In need of someone to help create sub box design and what would be the best way to wire them.

I have 2 skar audio vd-8 dual 4-ohm 600 watts (400 rms)

Running a PERFORMANCE TEKNIQUE 2 channel amp 1400watts bridgable.

I am installing in a 77 c10 with the available space of:

60 in length 

15 in high

6 in depth 

I'm going to be using .75 mdf 

Any help is appreciated, thanks!