I did think about a stacking combo but I wanted to maintain the individual functionality of each unit. I think a side by side configuration might work best and would keep all the connections accessible.
Like wise, if doc was able to provide me with the CAD layouts for the top plates, I could re-cut a single piece of acrylic that has all the mounting holes using the laser cutter at my office. I have some .25" thick acrylic at hand that would be perfect. Let me know if that is doable.
Best,
Thomas