The good news is... this is not one of the hardest places to find an RN job. Although its hard, it's very possible. Where I'm from, there are RNs working as aides/techs for 1-2yr and counting with no luck getting an RN job. It just takes a lot of time, and A LOT OF PATIENCE!
I feel for you and your wife because I was in the same boat, but an opportunity finally came my way. I have heard it takes at least 6 months. It took me about 2 months of actively looking and applying, and believe me it was the longest 2 months of my life. I don't wish it upon anyone, it can be tough.
My advice would be to network as much as possible. Spread the word that you are looking for work. Join the ANA/NNA, get involved. During this free time, it would be good to get your ACLS, PALS, etc. I would also recommend physically going in there and handing in resumes. Another thing I did was volunteer, preferably at a hospital she wants to work at. Keep a look out for new grad programs as well.
Just be patient and persistent, something will come up very soon! I know it. Good luck, and I will keep you both in my prayers. Let me know if you have any other questions