The most commonly damaged item under our Jimny's is the fuel tank.
So here is the solution!
Pictured is the new fuel tank guard fitted to my Jimny, and a pic of my own fuel tank before the guard went on.
These plates are made from 5mm aluminium and the brackets are 3mm steel. They weigh 3.6kg including the mounting brackets. All brackets for fitting are required, and fitting is fairly straight forward.