The goal is to tone it to a degree which covers the fact that there's no remaining luster. It's not difficult; it'd just difficult if you're not patient.
That might make the coin look "better" than it is now, but it's not going to get you anything but "genuine" or "UNC details," unless the grader is half asleep.
I've seen many coins that probably looked like this achieve high grades with market-acceptable tone jobs. It is actually hard to tell from the photo if there is any actual wear, but it doesn't look like it. So as SD says above, if toning covers the previous sins, the coin could achieve a lofty grade. More cynicism...it may depend on who submits it...