Axles - going to disc brakes - should I use these?

[UKAuto]

We are upgrading the brakes on my son's mini to disc. We have a pair of used front axles, but I don't know what to think of the surface where the bearings are installed; hopefully the pictures will be clear enough.

Should these be reused?, it seems the surface is worn, perhaps by abuse changing bearings at some point. The joints feel good, just worried about the condition of the shaft at hub's end.





All the other bits are new