Mine will probably be a bit larger. I was able to get a real good Craigslist deal on a 20.5 inch monitor. I’m also going to have 8 buttons per player instead of 6. I purchased snap-in buttons as well, so I’m going to have to re-engineer the front panel to account for that now. I will be doing something similar with the speakers as well, but I was planning to use a much smaller amplifier. Probably in the neighborhood of 8W or so.