Sounds like an excellent improvement Owen. Whilst I no longer own an 80’s car, I am sure there are lots of folks who would appreciate pictures if you are able to find them.
Below are the images I mentioned, not the best I know but it will give you an idea of what I did with the indicator switch.
Owen "bilibib" 1982 4/4 Twin Cam, Royal Ivory 1932 Super Sports, Duo tone(two tone)Green