I did the same with a pack of the super absorbent and soft towels. It took about 5 months to get back to using the litter box in the old place. The last month I used a rubbermaid container lid in front of the box with the toweling laid on it. Sometimes he would use both, the toweling to pee and the box to poop. I was lucky, I could just pop the towels into my washing machine each day. If I didn’t have that I would have probably bought the super cheap package of a few hundred and tossed em. Plus side, litter costs went way down. Vinegar to add to each load wasn’t to expensive once I found the huge bottles of cleaning vinegar in the cleaning isle. I did my absolute best to control my disgust and praised him every time he peed where I preferred and totes ignored when he didn’t. It wasn’t his fault and it was hard on us both. But he lived after surgery to correct his scarred urethra for another 12 years. After recovery he never peed on my stuff again. In the recovery phase I bought waterproof mattress, couch, and cushion covers. I’m sorry you had to go through this too.
Have a marmalade boy, he hated being touched on the tummy. Now he’s older (11) and loves the tummy rubs. He mellowed out lol. There is hope!