First your problem is being stupid - just one dump?

.
But anyway:
You can't use another nand, you need to get the cpu key for your own console, but since you lost your whole nand, you can never restore your console back to normal stock dash (with your default KV that is). You have to write xell and glitch it, get the cpu key, recreate the NAND with donor KV and write the produced image successfully.