Neither of mine have them at August 72. Or Ck17Me numbers. Must have been a retrofit I would think. Maybe a dealers fitout if they came from the same area. Or Ford themselves trying different things.

Great to see another Capri undergoing a resto. Will be a nice car when it's done and worth the effort.
 
I wonder if SMCKA would consider stocking the arch repair sections if there was enough intrest, may be worth a phone call.

Thanks whooli. Your generosity is much appreciated.

Still chipping away...Slowly. As far as paint stripping I have the boot and engine bay to go.
Finding a few surprises here and there.
Ordered the rear arches and new scuttle panels.
I probably need to source the wings as well.
 
Also thinking it may be cheaper in the long run to weld in a new front valance and taillight panel? Rust free, but require a fair bit of beating. Thoughts?
 
 

I second that, have a go at beating it.  If you weld new panels you will have to beat out the heat distortion so worst case its some good practice for you.
 
For areas you cant get behind you can tack a washer on and use a dent puller.
 
Did you get the  trims off, an old thread is here https://www.classic-ford.org/cfp/tm.aspx?m=69648
 

By the time you add a new panel and remove the old panel plus welding and fettling a new panel, most of the time it better to repair what’s there. Better to pay a professional sometimes to save dollars and not spend more. New panels are available but not cheap to install time wise.