Rear wheels wear out and die much faster than front wheels. You probably have no need to replace the front, so don't waste your money.

Clearly your spokes on the rear wheel are fatigued, but what is the condition of the rim? If the hub is in good shape, and if 130mm hubs with disc brakes are hard to find, you can keep the hub, and rebuild the wheel. Or have the bike shop rebuild it. Overhaul the hub bearings while you're at it. I've done this a few times, and it has paid off for me. If you're interested in doing it yourself, we can walk you through it. We've done it for lots of folks here on BF.