I'd definitely just replace the entire board, but there are wiring hacks on some of the wiring going to it . So I'd have to figure out what goes where originally. That will be my next project for sure. Might have to invite a pinball buddy over for that one. heheh
That would be your best option. But you are correct - the wiring to the board and the connectors would have to be completed correctly. But at least you would have a "rock solid" power supply !