V70 Roof Rail cover cap
 

Hoping one of you out there will be able to help.

The Nearside rear screw cover for my roof rail decided it wanted to part company from my car at around 70mph on the A13. I have 2 options I see, 1 is to see if anyone out there has one of these, or would know where I could get one, or secondly I need to get on my hands and knees and search for the one I lost (It came off somewhere between Rainham and Benfleet, just 17miles to check, shouldn't take long!)

Any help will be very much appreciated.