I've got a high horsepower streetbike, that I've run several different chains on. My previous favorite for durability, was the EK 530 ZZZ, but the chain I'm running now seems to be doing better than the EK. The chain I'm currently running is a DID 530 ZVM-X.
I'm also running Sunstar sprockets, again for durability. But I don't think they make sprockets for a Duck.
I believe your Duck also runs a 530 chain.
So if it were me, I'd go with AFAM steel sprockets and a DID 530 ZVM-X chain.