you should be lucky. I been needing a gold k11 bumper for ages n they very rare colour. However, i have a standard black bumper with a little dint and a scratch, easily repairable - brand new, yours for £10 + P+P??
im in Newcastle, will sort a pic out later when im awake but its just a standard k11 front bumper, has a dent and a scratch on the lefthand side, dent is about size of a fist and scratch is about 2 inches long