Well as for how they were done originally - they were not painted. Even the small stripe on the lower body (Décor Group) was not painted. You might post up a pic of how yours looks to see what ideas we can provide to help.
Ray
You sure about that?
Originally, the rockers were painted black. The paint wrapped into the door jam a bit and covered the bottom of the door sill as well.
The small stripe above it was a decal but it wasn't on the decor group, only on the side-striped cars. The decor group had a thin molding along the edge of the paint (10pcs).