I'll answer a few of your questions. We keep our boxes in the basement. We scoop at least once a day and clean and disinfect regularly. One of the things that keeps down the smell is good hydration so that their urine is less concentrated. And that's where canned food comes into play. Cats do not get enough moisture from dry food and often do not drink enough water to make up for that. Canned food is better on that regard. You can do even better byaking sure that the canned food is high in protein rather than carbs. Many cat foods, even those that are considered premium, are too heavy on the carbs. as for smell; you feed it to them and walk away. I don't leave it put for extended periods, so it's not an issue. Keep in mind that a cat's appetite is stimulated by smell.
I second the idea of a foster. You might be better off with an adult cat. I like my cats indoors. There are lots of ways to encourage play and to make their environment stimulating. They sleep a lot regardless.
Live with intention. Walk to the edge. Listen hard. Practice wellness. Play with abandon. Laugh. Choose with no regret. Continue to learn. Appreciate your friends. Do what you love. Live as if this is all there is.
--Mary Anne Radmacher