[rrobson]

It’s worth what someone is willing to pay for it. It all depends on how desperate you are, you say you’ve been looking for over a year now? And this is the only one you’ve found? At that price with the repairs and colour your looking at nearly 1000 euros, it it worth it to you?

They come up for sale so infrequently that it’s difficult to compare prices. Not so long ago genuine premium bumpers where changing hands at £1000 (€1100) but they were in very good condition. I haven’t seen one for sale for quite a while.
If the bumper is complete with indicators, fog lamps and all the trim he probably isn’t too far off the mark. If it’s missing anything then it’s too expensive.