Nice score sir! For that price, quality and age, you won't even need to justify the purchase with labels.
you can try the resurfacing drilling technique if you really want your own label. Will be tedious but should be worth it. You just need time and a friend that has a machining drill.
Without a decent recess, the chips will slip and labels with wear over time.
While you are on this, please make sure your sanity is in check. Else, you will end up with #over9000!!!! Chips.
Good luck sir.