I have been hugely humbled by the response from everyone on this forum, but especially by enuff_zeds offer to drive 6 hours here and back from Norfolk and GenZeds offer of a free grill. Very, very kind, but I don't feel comfortable accepting freebies and I understand the problem with the plastic pins snapping off. So as my bumper needs a bit of it respraying, £200.00 when I last asked, it would make more sense to wait for a complete one to come up in Sterling grey in good condition in the hope that it wont be too expensive, although they are on eBay, then have ago at fitting it myself, it can't be any worse than those annoying window things I did. My wife has also made it plain that I will not be allowed to sell the car as it gives me too much pleasure and I will soon "get over it"! I have contemplated filling the holes and painting them black, it's worth a try.
Mike

The other thing that is strange is that the fixings around the wheel arch are all there?