I drive a 2002 ford expediton. I have 2 18" BTLS, 2 RF 30001bd amps. Im need a sweet box designed for me that has a slot port on each side of the box for cool looks and so i can install my batts between the ports. My Max Dimensions are 24H x49W x 27D. Looking to tune to around 33hz or so. Please acount for 2 2x4 from the top to the bottom for bracing and 2 2x4 from front to the back for bracing. Subs up and port back.Also the top to be double baffled and flush mounted for the sub to flush mount.