Any chance your husband has a "genuine" Irish grandparent? If so, it's possible to take Irish nationality pretty much just by proving your grandparent was an Irish national (birth certificate, old passport, etc.). I know that's how loads of people managed to stay on here in France when they started cracking down on non-EU foreigners. The website of the nearest Irish Embassy would have more information on this.

But you're right - without the local language, it will be a struggle for your husband just about anywhere. The financial stuff is more transferable than folks will have you believe - but you do need to be able to read up on the local regulations in the local language to make the transition.