I've removed the front bumper on my 4200 in order to change the engine radiator. However having done that it's become obvious that the main bumper attachment brackets have disolved, just leaving some rusty bits behind. I've attached some pictures showing a strip of rusty metal attached the the back of the plastic bumper. Also pictures of the rusty remains still attached to the box section running across the front of the chassis. I can't see these parts on the Eurospares parts diagrams. Does anyone know if the brackets are part of the bumper and not available as separate items? If that's the case what's the solution?