Dash Paint\Door upper panel paint

Hello,all A-body fans,I am in the middle of a major body and paint project (the car is a rolling chassis and completely dissassembled for paint)and need some information about obtaining the correct dash paint,and door panel paint for my 70' Swinger 340.I assume that there is a interior paint code that I should go by,and I am concerned with the proper texture and hue etc,the car is a black interior car,and could be done with any old paint,but I fear doing this will not come even close to my expectations for the car,anyway ,any Info on paint codes,and suppliers would be appreciated THANKS!