65 Barracuda rear wheel arch repairs

It's been a few months but now my Challenger is in good shape for the British summer(?!!!!) I can turn my attention to the 65 Barracuda.
Shells been stripped and the floorpans and rear arches are the only major areas, floorpans I'll just get made but the wheel arch repair panels will be harder. I've trawler the web looking for panels but I cant find them, I thought Laysons did them but can't find them on their website.
Any ideas please? TIA