I finally got the doors installed today, just plain rectangles of 3/4 oak veneered plywood, cut to fit inside the opening in the front. I used surface mounted hidden hinges, which are the greatest invention of all for those of us without the tools to install cup hinges.
Now, I need to install a couple of small shelves inside to make it easier to store fish food and fertilizers, while still leaving room for the filter and CO2 reactor. The electric outlets will probably just be what I now use, chained short cord extension cords, with two timers controlling a couple of the extension cords.
After that I will be staining it to match the existing hood, and clear finishing it. I think I will just use the same door knobs as on the present stand. And, I'm still not sure what kind of cushion to use between the glass and the stand.