May I try to help?.. those parameters you posted just would NOT work for me... maybe it's me, maybe not... anyways this design in Torres should be close to what you need... not perfect and I'm hanging out there on this one due to not being able to model them first... Please slow down and study how these assembly drawings show the sub/port configuration and assembly... Build it just like the pictures as this sub/port configuration is how it is done in Torres... the only 45 degree beveled piece you'll probably need is at the bend in the port.. the round dowels shown should be added... don't worry about displacement... It'll be minimal... ask away if something does not make sense... please!
BTW... it is ALL 3/4" single baffle construction... it's sufficient in your case...
This will most likely sound a lot better than the box above you built... I'd start over if I was you... You can try this one if you want... Once installed in the vehicle, leave around 4" clearance for the port to breathe and face the subs/port to the rear... Just my humble opinion...
Use dowels for bracing...
This is
EXACTLY how the pieces listed should fit together in the illustration below... port wall behind the baffle... a 45 in the port bend... the other 45's are optional and not accounted for in the volume... not that they'd make much difference anyways... the end wall on the port side will need to be cut .75" longer than the one on the other side of the box... look and you'll see this as well... use the "Physical port length" to tell you how long to cut your port pieces and make sure it is spaced 4" from the sides of the box evenly throughout it's length... there should be 4" of space from the port bend to the 45 as well... If I'm missing something it is because I've been typing for so long...
If you decide to start over and have any questions... Don't hesitate to ask...
Good Luck!