find

1 a driver that has a qts of 34 or lower.


2 a low vas that matches up to the size of the WO32 sealed

 
  chamber


3 a sealed box.....  well its sealed....


4 a low excursion is considered preferable over a High Xmax  
  5-7 is what some are using. this will give you a tighter

  more accurate bass. I would be only guessing if you

  could go as high as 15 because of the unique damping.

  You may loose the Characteristics that the WO32 is

  famous for.

   
4 You don't need to model a 4th order just go with the right

   specs for the enclosure. The vifa driver was used

   because of its close specs and mounting ease. match the    
   match the driver to the enclosure in this case.


 

Edit   Oh and good luck!

the reason for the low X-Max is also to avoid the driver's surround hitting the side of the cabinet.  

Just try to get specs similar to the Vifa and Steve's suggested.

When the driver is in you can experiment with placeing chunks of something solid (I use 2x4s) into the sealed section, you will know immediately when you add the first 2x4x6 or whatever if adding will help the sound.