I will be fabricating a steel stand for the tank. I was going to do it today, but found the steel supply stores closed yesterday.
As per discussion
here, I will be building it out of 1" square tube with 0.15" wall thickness (provided this is a common size that I can find). I'll put some small 45 degree braces in most of the corners to help with any wobble.
The finishing of the stand will be 3/4" plywood panels that I will finish with an enamel acrylic white paint on the inside, and the outside will be finished with an oil-based high gloss spray in a dark gray to match our lower kitchen cabinets.
The plywood panels will be attached using magnets so they are easily removable for maintenance. Seeing as the sump area will be very limited for space, the removable panels will help with access - especially in the electrical area. There will be a divider to make a "dry side" to protect the electrical from the "wet side" of the sump.