On my boxxers, I found that getting the finest grade sandpaper you can find, and liberally coating it in wet lube, one could polish a surprisingly large scracth out to the point it no longer affected the seals. Granted, it's going to be tougher on an air fork, what with the tighter seals involved, but still, maybe worth a try?
Fortunatley, the oil seals/wipers don't hold any of the air in, that's all contained inside the right side stanchion.
But yeah, if you can find some 2000 grit sand paper, Testors sanding films work extrememly well and are easy to find at any worth while hobby shop, you can gently sand down the sharp edges and it should be good to roll for a while longer.
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