Aye my previous two had gone that way pete, paint freshened it up ok but probably due to the location it didn't stay fresh looking for long.
Suppose quickest way would be to have a spare template mesh to cut the new stuff so when replacment time comes its bumper off, swap mesh and refit. Reckon most would have the job done in under an hour that way......if anyone wants my original mesh to do it this way it's yours for postage only