Ouch!
Yes, MMC will have the paint code used for the build, but paint typically goes thru some changes as it ages. It is far better to find a reputable restoration shop that will use a color analyzer right on the car itself to read the color and then provide the formula for a spot on match.
If you just use the MMC paint code, there's a far greater chance that even with color blending onto adjacent panels, it will still be off.
