I've used a pair of Gerson's front wings on my 1957 Oval, and apart from finding a good pair of genuine Oval wings, the Gerson units are the best you can get.
The fit is good, the profile over the wheel is better than other repro wings, they have the headlight wire tube fitted, the right side wing is blanked off while the left wing has the cut-out for the horn behind the little grills as per the VW originals. They also have the 'bulge' for the running board, again something some repro wings lack.
If you compare the cost of restoring a rusty original wing,(which would of course be preferable, but when did you last see these for sale at a reasonable price?), the Gerson wings make sense.
Gavin.