Some years ago there were lots of the toilet training kits about. I thought it was a good idea until I realised that you need to be able to monitor what comes out in order to ensure your cat is in good health.
I also discovered that you can get long handled scoops (which are always out of stock when I remember to look).
Scoop into a dog poo bag, tie up and get it out of the house or use a litter locker, if they still call them that. It's a bag dispenser with a bin, can't explain it properly but it will be online somewhere.