So I've got my X12 on the way along with my SAZ-2000D. Couple ques

[Syphlyn 1]

Currently I have plans for a box with these specs:

 

Net Volume: 2.5
Tuning Freq: 32
Port L: 34.5
Port H: 16.5
Port W: 2.5
Port area 41 inches
Port area/cubic foot 15.88

 

It's a sundown X12 dual 2 ohm paired with my SAZ-2000D. It's going a 2000 F150 with the sub and port firing upwards. I plan for a double baffle. Will I have enough port area and does that seem like a decent box? Here's the plans and pictures: http://imgur.com/a/9zqJN

 

I'm planning a H/O alternator most likely mechman 240A or 270A.

 

Does this look okay?