If it IS in fact paint and not powder coating you can take it to your local automotive paint supply store and they should be able to “shoot” it.
Not sure of the “official” name of this tool but when I worked for a supply shop that carried all of the Dupont line products they had a hand held tool that would read the paint and spit out a mix formula. It may not be exact but it should be very close. If you are completely recoating it shouldn’t matter.
This gadget only works on “paint”.
Hit the Yellow pages or Google your nearest supply shop and ask them.