Yes, multiple passed with acetone do the trick. Also, I've been hearing about fiber cleaning brushes for a while and decided to finally give them a try.
They are working fairly well but I think a slightly stiffer bristle would work better on this particular project.
I removed the big filter choke and brushed some new flack black paint on the power transformer.
Then created a star stencil using the original as a template and recreated the white star stamp.