There is always the possibility of having one custom built by Sound Anchor. These come factory filled and supplied with spikes. Available with open metal architecture that your equipment rests on directly, or constructed with non adjustable shelves. You may turn in the exact measurements (including feet shelves, etc.) and Bob will build them exactly the way you want. The link I have provided goes directly to the page that shows these. Best of luck in finding a solution that works for you.
http://www.soundanchors.com/page23.html
http://www.soundanchors.com/page23.html