building a box for 2 apxx 15s box is around 11 cubes befor port/displacment
the dimentions of the box are
width 40 height 20 depth 30
my question here is my port tuning skills are lacking and was wondering if anyone could help me its for daily and i'd like it to be tuned around 35-40 any help would be aprecieated

photo of how i'd like to do box, but instead of subs on the top i'd like the subs to be on same baffle as the port