I just went to my local craft store that has a big model paint selection. I matched up the colors as best as I could. When I got home, I mixed a few together to come up with a custom mix that looked good to my eye. You can try dipping the ends of the leaf springs in EvapoRust. That might get the colors to come out a little nicer. I just dipped mine for a little while and these colors showed up. The leaves were very rusty with no paint marks showing before the dip.