For enamel it's probably easy but for lacquer, you will have to use acetone or lacquer thinner. However it would also eat polystyrene based plastics as well (pretty much all plastic nosecones are made from this. Estes and others, why can't you use HDPE as nosecone material??). If you have a belt sander, it should be easy to sand it off with a 60 grit paper. The fin cans would be the hard part, however since they are usually not polystyrene, if it's phenolic/fiberglass you could just use "Aircraft Remover". That stuff will even dissolve 2k paint and even polyesters/gel coat (just make sure the fiberglass isn't polyester based)