can someone give me ideas and box designs. i have a 99 3/4 ton suburban 2500 max box dimension can be 46 in side to side. 28 in front to back. n say round 20-22 in tall. i want subs facing to the back with port between the 2. tuned at 32 hz. n what would be better to have all one chamber or seperately with ports meetin in middle.