I was in a similar situation.
Account had no recoveries, I set my own, it got recovered.
Firstly, set your own recoveries. They will instantly be active.
Wait at least a month. This is to ensure it doesn't get recovered back.
If they payed by credit card it can be recovered back unless you pay with credit card after it.
If by PBP / SMS there is slightly less chance of it getting recovered.
Repeat the aforementioned.
The fact that it had pk scull shows it hasn't been played for quite awhile, which is a positive.
Keep training your pure :]
At least until 75 str.
40 def / 44 pray / 80 range on that account would be nice :]

