Its tough here to find inner and outer primary covers that are not badly gouged up from loose cush drives and brake petals. The best ones are the repaired ones that are sold painted silver...
Add in the inners are bent like corn chips and full of badly done helicoils or worse- just drilled through for back side bolting- and I believe there is a market over here.
Now of course you are always going to have the guys who will proudly crow that they only spent 4 dollars and fixed theirs with epoxy and fiberglass resin, then used two tubes of silicone to try and seal them up.
I dont think those guys are his "market target" though.
Lee