4 8" subs in ported box?? Is it possible

Does anyone have the max dimensions of the area behind our seats on a 2014+ crewmax. I am considering running 4 8" non shallow mount subs. Looks like most of them are 4.50 deep or less. I am considering the
Skar ix-8 at 4.17 depth or
VD series that are 3.94.
I have owned 2 10' vd series and they sound great. Just looking for WOW factor.

Im using these measurements off a Ground shaker Box on ebay for 2 12' subs and putting them in the RE AUDIO box builder. They are using 11/16th wood which honestly i think 5/8 or even 1/2 would be ok since the box is so small at the top and bottom.

The Dimensions are

-HEIGHT: 16 3/4”
-LENGTH: 45 1/4"
-TOP DEPTH: 5 1/4"
-BOTTOM DEPTH: 8 1/4"

I would prefer to do the ports in the top to take up less volume internally. As it is there is a slot port on the front 1.5 inches wide and is 9" long tuned to 40hz. Box is 1.98 cu ft without subs

Let me know what you think.

 

Check this out:
https://www.tundras.com/threads/crewmax-backseat-storage-hack.27951/page-4#post-916518

If you want more depth

 

thats cool I’d prefer not to alter the seat mounts
not to mention the 300.00 cost for it lol
thanks