Orig parts finish quality

[DjD]

Staying as orig as possible on a restoration some parts (axle tubes, a-arms, even frame rails) get that nice cottage cheese finish after cleaning away the rust. Is that hammered look acceptable or is it time to find new parts? Is there a process that can be done that fills this in? Can the surface be taken down to bring back a smooth finish?

Is this cottage cheese caused more from media blasting with too course of material?

Thanks,
Dennis