Wow, that is incredible! What a beautiful time capsule! I absolutely love the 100% custom power supply. The ingenuity in early video coin-op games and making do with whatever you could get your hands on is amazing to me. I wouldn't change a thing other than replacing any capacitors that have exceeded their lifespan with high ESR or visible bulging.
Yes the power supply is awesome. I bet they cut those heat sinks one at a time.
And I like that audio board too. The way it's cut into sections by the silkscreen makes me strangely calm and happy.

