I would just watch your local jeep club forums or check craigslist. Even if you have to drive a few hours to pick them up, may be worth it.
If you can find them, you simply swap the entire axle assembly. Then keep your old axles for parts or sell them. They're not worth as much, but you should be able to recover some of your expense.
If you can find them, you simply swap the entire axle assembly. Then keep your old axles for parts or sell them. They're not worth as much, but you should be able to recover some of your expense.