I want to restore my 1983 280zx GL to stock condition. There is hardly any rust on this car. . The paint code/trim listed under the hood is 154 T.  The car is two tone silver and what appears to be a little darker silver.  This is factory original paint as far as I can tell.  I can't find this paint code online.  Is there someplace else I  can try to find this paint?  I can't imagine this car being a one off car from factory.  Any help is appreciated.

Have you talked to an auto paint supply house yet? I would start there with their color books