Box plans Sticky Help!!!

[MrSplorDie]

http://img10.imageshack.us/my.php?im...z65sqin0uu.png

I want to build a box @ 4cb at 32hz , but 41inches is to long and i'm trying to make it only 36 inches long, so how do you shorten the box with-out messing up the port area and cb ft???

[thai_creeper]

i think you have to ask someone to redesign it for you for those dimensions

[saywhat?]

redesign it completely

[MrSplorDie]

who or how can I get it redesigned?