I used ECS automotive. Looks near perfect. I sent a picture of my existing one as well. Call them up, very helpful. I think I spoke with a guy named Dave, he is a car guy too. Below links are both the same place.
http://www.ecsvin.com/
https://ecs-automotive-concepts.myshopify.com/collections/gm-decals/products/vin-data-decal-1969-72-gm-vehicles