First off what type of paint did you use is it a Acr-Acrylic Based, Enamel Based or Lacquer based? From what you said about using a type of alcohol it should be the Acr type. I don't know about some thing called SuperClean but blwnrtr93 is right that you should soaking it for 24 up to 48hrs and use an old tooth brush to clean off the paint but you do need to know that you may have to keep trying to soak the body till you get all the old paint off. Now remember stoping after just one soaking will not help you have to repeat it some times. To get it to come out right.
May I ask how mini cote's of Primer did you use as well as white and clear? Some time if the paint cotes are thick it may take some time or days to get all the paint off. Now if you used an Enamel clear over the Arc paint you would need to get that Enamel paint off first with Enamel Thinner and then us the alcohol to get the white off.
But first we need you to tell us just wich types of paint you use.