2020 KZ sportsmen se TK tire blowout (advice needed)

I, too, shredded a tire which tore up the inside of the "wheel well". I replaced the material with Coroplast, the black corrugated plastic board that lasted for years without deterioration. It handled road spray and rocks from the tire flawlessly. I screwed it into the bottom of the flooring and sealed the edges to make it waterproof.