i want to paint my CJ-5 jeep tub a fluorescent/john deer green using spray paint or cheap can paint but don't know if it will work on fiberglass. we were going to use rustoleum but it says it does work on fiberglass but if it moves it will chip and crack and break off. of course a car body's going to bend and move a little. does anybody have any suggestions other than getting it professionally done???? thanks! :)