Need help with BF MKiii wagon roof bars

[BFMKIIIWAGON]

I bought a BF MKiii wagon approx 2 months back. It came with genuine Ford roof bars but the owner had lost the keys. I've been to a locksmith and he said without knowing what the key blank looks like it will be very difficult to get into. Could anyone provide me with a photo of their key?

[Papa Smurf]

Have you tried to find out who was the original selling dealer? They may be able to help?
Or, it may have been installed at the factory? ( not likely but, you never know)