To drill or not to drill -or how to find my original trim holes ’68 Polara

Not that the kind of car matters for this one, but '68 Polara.
As some of you know I am restoring my lower aluminum sill plate trim.
Restoration of aluminum lower sill moulding’68 Polara

The original trim clips were screwed into the lower sill of the car. However after the body an paint those are obviously covered up.
What I really want to do is find the...

To drill or not to drill -or how to find my original trim holes '68 Polara
Author: HWYCRZR