Alright I did my cleaning with distilled water, dish soap, and a toothbrush. It's significantly cleaner ( and shiny! ) but there is still corrosion around some of the legs. I was planning on using acetone to do the finishing touches but all I have is nail polish remover which isn't pure acetone. Does that even matter?

Also some more copper traces showed up after the cleaning. (see 2nd attached picture)