Shame T is in hospital, as she would have input with Mini, who has a special litter tray, as she can't stand to wee. I dont agree with wheelchairs for animals, and I think it would hamper toileting more than now. We have had a CH kitty, who I briefly cared for, and he could manage a normal tray, but he lifted his legs up more than normal and did end up getting quite a bit out of the tray, bless him. Took a while, but we did rehome him. I dont think the initial thoughts of rehoming are right, people who would look to take on a disabled cat aren't going to be the kind of people who would dump them if circumstances change in my experience. There is a website about disabled cats that has a forum, we approached them with our CH kitty, just can't think of the website, but places like that might be worth approaching, as they have experience/knowledge, and also vets, as while they wouldnt have time, they would know clients who have experience/knowledge of disabled cats, and who would have the dedication to care for her. Good luck