There is no reproduction of the 68-69 trim ring, but the 67 trim is is entirely identical, except it does not have the "brushed" effect on the inner face. You could leave this polished, or brush it yourself. Personally, I prefer them polished.
Yeah, the one I linked has all the exact curves and the 'scallop' on the corner. The retainers are not exact, but they cannot be seen when they are installed.