Your selection of the Classic Cast Turrent is wise. I can be used as a single stage by disabling the auto-indexing feature or use it as a much faster press by using the auto feature. Few reloaders ever need a progressive and even fewer ever need anything faster than what you now have.
I greatly dislike the currently popular "quick insert" gadgets. IF I wanted to make faster die changes I'd far prefer to use your Lee CCT's excellent rapid swap turrets with dies preloaded and adjusted. Your turret exchange can be done in seconds and without tools and without buying sleeves for every die; for those of us with a lot of die sets those things can quickly amount to some significant money!