Stop in for a cup of coffee

I wonder how much would need to be ground? It looks like it's held off a good bit.
Im thinking of putting the thin valley cover on and then using a bit of play dough and bolting it down to see how much clearance there is with that one and then deciding from there.

While new, that plate is 200 bucks, I paid 40 for it at the Nats, so it’s not gonna make me cry to grind on it