[poncho4554spd]

Hi I know this has been discussed numerous times. I am refinishing a set of wheels for my 74 and need to get some paint mixed up for the charcoal color. I have already sandblasted, epoxied and sprayed them in the argent silver urethane. I know the ppg paint code is no longer good for the charcoal but have a formula for it. The only problem is, ppg is not available at my local paint shops and I normally use RM products. Does anyone know of a current paint code that might cross over to another system other than the PPG that would look correct? Thanks.