Looking to build a ported box for a single DD 9512. I have a us amps MD3 powering it. Im using 1" mdf as i already have a full sheet laying around, i would like a slot port. Ive been looking for a program to input my measurments etc. and have a cut out sheet i can just use to cut it all...Im just not sure of a good program. i have Winisd but it doesnt help me much.

h = 14in
l = 30in
w = 25in

Tuned to 35hz

Thanks for any help.
Kyle.