I would place Reagan on the dollar coin. While nobody wanted to use them when they honored feminist icons, I bet they would be glad to use “the Gipper.”
The Susan B. Anthony dollar coins failed primarily because they were too close in size to the quarter. Now the Eisenhower dollar coin was a real dollar coin. It felt solid in your pocket, as if you had some real money. :-)
Now is not the time to be spending any money to fix something that isn’t broken. It’s all adding up, and it pisses me off!