looking for vendors that sell Dark Green vinyl top and interior panels for a 1967 Dodge Dart Sedan post-car

Legendary Auto Interiors
If you want they can send you a sample of materials to match colors.
If you can't find panels, call Legendary and tell them what you need. If you have old panels that aren't complete trash they may take them in as templates to make what you need and then offer it to others. They did that for the door and rear panels that I needed for my High trim 1970 Dart.