Where to get touch-up paint - 87 code 15U?

[HyperV6]

I've got an 1987 Regal T with paint code 15U - Med Gray Met. The Dupli Color paint does not go back to the 1987 model year. What is a correct match touch-up paint and where can I buy it?

Thanks for any help, Craig

 

[challengermike]

Im sure a local auto paint store could mix some up .