skep, in all honesty, i think you should have gone further with this, and not done a regular box for the bottom //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif
im not sure on how thats going to look with a square bottom like that.
would have been much more awesome if you used that back board, a floor board, and glassed the two rings facing the opposite angles (away from eachother) and stretched to the entire floor - even up the front wall a little - and put the ampracks on the front of the box on the big flat glassed area...
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like this;
you arent too far along to go this way eaither!!!