I just recently picked up a working Super 6 Mark II 6500 series with super-spider from the local coin-op amusement place. This cabinet has some VERY strong similarities to the Galaxy I (i.e I believe it is the same physical cabinet with different art-work)
Everything is in very good shape, monitor is bright, crisp and clear, internals are visually in good shape, great action on the buttons and dart head, all cabinet lights are working properly. However I bought this particular cabinet with the thought of upgrading it to galaxy 1 internals.
What I'm wondering is if anyone knows if the power supply in the 6500 is the same as the galaxy I and what parts and pieces I might need to do this conversion. I can provide pictures once I return home if that would be helpfull.