Get a really bright orange. Blaze orange or the like. Just super bright pastel color.
Next, get a brushable bright green. It cannot have a yellow base, or it'll come out ugly as snot.
Get a thin coat of the orange and don't let it dry overnight. Maybe, 2 hours? After the paint cures, you're SOL.
Now, take the brushable green (I love faskolor paints for this) hand brush over the orange so it bleeds into it. If you make the right thickness, you'll get that famed burnt orange coloration.
I know many color combinations, but one thing I don't is the quality of your paint. High quality paint = high quality colors, remember that.
Now, before you even try this, you need to perfect your color. Cut some of the body flashing off, then paint it to your liking. You may want to go with two coats of orange (since it will retain more brightness.). The best green to probably use would be, lime, or accent green.
As for that though, I love making my own really custom colors. I'm sure if you do look hard enough though, you can find the perfect color in a paint, or a fizz can. 🙂