One day, Lut, they will thank you for this...

Good luck next Tuesday.

Have you thought of asking an off-duty vet nurse to come over and help you? For a small fee I am sure she would. A lot of vet nurses here do holiday cat feeding/cat medicating/dog walking etc as a second job while owners are away.
Worth a thought perhaps. The other person (above) who suggested the pet groomers/bathers had a good idea too.