I found this site, but I've never tried them. I started looking for something as well but realized there were not many options for me. Shipping some heavy duty skid plates like RCI from the states would just cost me so much, probably more than a cat replacement + they don't cover fully, to my knowledge
Scorpion Armor Skid Plate for 05-20 Tacoma/4Runner 10-14 FJ Cruiser Daystar | Toys For Trucks(R) Official Site | Truck & Jeep Accessories
someone with some fabrication skills can make a simple skid plate that can mount on the existing frame. sure someone can just cut through it but many will just pass on it, not worth the extra time/risk
