nice. but you'd probably get more interest if this was posted in the bass forum here. Talkbass.com is another excellent resource online for all things bass and there is a huge DIY community there. Very nice and helpful folks.
Not trying to dump on you. There is a dedicated Bass forum here at TGP and this is a "DIY Bass cab". Also, Talkbass is the premier place online for all things bass. Just trying to helpfully point you in the right direction.