Awesome choices ๐ Prickly pear is my absolute favorite. Gorgeous flowers, but weeding around them is tricky. I'm a few years in with them and have some glochids in my fingers right now lol.
Sea oats are beautiful, too. I have a patch in sandy soil in partial sun and another in clay in full blazing sun, mid-Atlantic 7b. Love watching the seed stalks sway in the breeze.