I think you've exceeded the effort/cost benefit. You can pick up a new PSU, for all the time and effort that you put in.
Regardless... that PSU was obviously hacked in many ways.
You might want to start tracing the voltages from the transformer, and work your way up from there. The transformer should be putting out AC at a lower voltage. Then, this AC wave gets rectified into a positive wave, then passes through the caps where it becomes almost clean DC. The voltage regulating circuit cleans it all up.
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