I don't have the space for one that big in my house, but with today's technology it would be relatively easy to make it all fit into something like these:
A couple restaurants near me when I was younger had these. I always thought they were cool. Could put it on an appropriate wall somewhere. That would be fun.
Nice little unit, though 100 songs - would get bored too quickly.... As for size yes it's big but so are pinballs - goes with the theme and once you have a powered sub, 4 speakers, quality amp and unit for songs it's either this or a tv cabinet style so every for there own.