Rust Repair Panels!

[UKXR8]

Hi, as a few of you on here may have spotted, I'm running an AU2 XR8 sedan here in the UK.
Anyway, the rubbish climate and salted roads over here have taken their toll on the rear wheel arches. I contacted Ford who can supply with me with an entire quarter panel which is great, but I only want arch repair sections due to shipping costs, which for some reason they can't do.
Could somebody please point me in the right direction?
Cheers

Dave