Yes I am aware of the fibreglass ones from that guy on here.

I am however wondering if there is such thing as repair panels for the rear wheelarches of KE70s, my shell is pretty good rust wise apart from the rear arches, which are stuffed. To make room for some decent rims and rubber they'll need lipping up and with the state they're in its not really a possibility.
I'd like to stay with metal as much as possible.

Otherwise, ideas on fixing them?