Yes: I've just had a look at one of the wings: I'd definitely try to get a donor part to tidy-up: I'd forgotton how many little pressings there are.
I think if you were to make one up, you would never be able to pull that much shape into one peice, so it would have to be fabricated, probably in three pieces. You could beat the flanges over a curved plate, so tricky but do-able, and you could chase the little reinforement bead in by hand using a modified chisel or drill bit ground to the same profile as the rib, with a corrosponding groove cut/ground into some plate.
I reckon if I was to try to make this, it would easily take a whole day, by time you templated each piece, cut the blanks, made the tooling, done the metal forming, welded it all up and ground/linished it all to blend. Still, on the bright side, at least it's under stonechip

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