A proper automatic litter box. Something that can be easily taken apart and hosed out to clean, and won't smear feces all over itself if a cat doesn't have the

A proper automatic litter box. Something that can be easily taken apart and hosed out to clean, and won't smear feces all over itself if a cat doesn't have the hardest stool. Also something that doesn't use the litter enclosure itself; so if a cat touches the side of the enclosure, litter (and other stuff) won't get into their furr. I've designed a few ideas, and thought about it for a long time; but honestly I haven't come up with a novel solution to what's already out there. I'd pay for just the design, and build it myself at this point. I'd probably pay 1000 dollars for it, and dedicate a lot of space to it; I hate scooping litter that much.