"We come from the Fere Krekaland to preserve our customs. Now we wish you to be kind enough to give us as much land as will enable us to live."
He himself said that he came from Greece (according to the OLB)
As for the iron-working in India: My sources all say this started ca 1500 BC
Yes, you are right again... My head is spinning from reading about and in the OLB, combined with reading other old Frisian legends (about Friso).
But what I said about the start of iron working in India is a quote from the pdf you yourself posted.