As Originator of this Thread ...
... thought I'd let y'all know how I finished it. I installed Clearwater Glendas with the amber lens cover. They do everything I wanted them to do, which is cause other drivers to see me. Based on reactions and comments, I believe they work well. I originally was looking for amber LEDs, but the Glendas came with white LEDs and amber lens covers, plus they included the white lens covers and o-ring seals as spares, so I can switch in about five minutes to white if I ever want to use them as nighttime driving lights.
Thx for your input. It helped.