On the construction of atomic kernels

Question

Can anybody point me to an English translation of Heisenberg’s three part paper Über den Bau der Atomkerne?

Failing that, can you point me to a non-paywalled German version of part III? I have parts I and II in German, but not part III.

Thanks in advance. I shall award a 100-point bounty to the answer that best assists.

Edit 14/01/2017: and if nobody can answer that, here's a bonus question. But you have to answer both parts to qualify for the bounty: If the nuclear force is charge-independent then a) how come there are no diprotons, and b) what's responsible for the repulsion in the deuteron?

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