It would seem the factory changed the spec of the wings, inner & outer after 2011. So my repairer is having difficulty sourcing the required panels as the factory no longer have them. This is crazy as the car is not yet 3 years old.
Our car was built in Feb/March 2012 and I am pretty sure it still has the older style inner wings. The Roadster inner wings started to be used across the range some time in mid or late 2012 I think. The inner wings are predominantly a sheet of flat metal with various holes cut in them, it should not be that hard to duplicate and I doubt very much that the design of the wings themselves has changed they just need to be cut to fit the car.
I have seen reports that Morgan themselves have done this sort of repair work at the factory. If that is possible you may be better off getting the car to the factory.