I got a broken blue fender:
I repaired it with special glue and repairing paste for plastic, and marked the cutting lines; plastic surgery style.
Once cut out with an electric saw like this one and using heavy sandpaper to make the borders smooth...
...I relocated the holes about 3/4" higher, to reduce the clearance fender-tyre.
I only used light sandpaper to remove the older coating, no primer. Then, I painted it matt-black with a regular bodywork spray.
Also, the front fork has been painted with the same spray.
Notice that the front side is longer than the rear, although the fender is reversible now.
