I'm so glad Ali is safe with you and I hope he finds a wonderful home. He's quite handsome but I'm partial to the black and whites.
I just started using a rubbermaid container for my foster Barney because he pees over the side. I cut a hole just under the handle big enough for him to get in and out and thankfully it has solved the problem. The sides are ridiculously high but no more pee to clean up.
I haven't used these boxes inside because I have covered boxes but I'm tempted to because some of my cats make the biggest mess kicking the litter out of the box.
Thanks for rescuing Ali.