Hotchkis hood pin measurements needed

So here is what you might do. Make a template of the Hotchkiss base and overlay it on your present base. If everything aligns just bolt them on. If it covers good but the holes don't match, all you would have to do is rotate the base 45 degrees and redial the holes. But that will leave holes in your hood under the base.
I think with your chrome trim on the hood the base/pin set on your car will look better with what you presently have than the Hotchkiss set.