No one knows, know one will be able to give you an accurate answer to this. It all comes down to how big the draws will be. Will they be doing 2000, 3000, 4000, 5000, 6000, 7000, 8000 ITAs per draw? How often will they be doing these draws. Will that be every week, two weeks, once a month? No one can give you this answer. Everything is sooo unpredictable, it is pure guessing game.
Personally I think it will be few draws to come down to thar score, maybe around 4-6 draws. maybe it will be quicker.