Best type of paint for restoring 1968 Camaro Butternut Yellow

[gwp4]

Hi fellow Camaro owners:

What is the best paint to use to restore a 1968 Camaro butternut yellow (original color)?  I currently have water-borne PPG yellow paint on the car with a clear coat.  It looks pretty good but seems to not quite match the acrylic butternut yellow manufactured by Dupont (shade lighter).  I'd like to make the car look as stock/original as possible.  Also, if I decide to have the car repainted with all the trim removed does anyone have a ballpark idea of what it may cost?   Many thanks.       

[68camaroz28]

Shades of paint within a particular supplier can be adjusted to match. We have a 69 SS396 Nova (father son car) that was painted with PPG where our recently completed 68 Camaro Z/28 was painted with Dupont products but they match. As far as costs there are far too many variables to what needs to be done to give any ballpark IMHO.