It can be done, but it's not easy. Best strategy is to sign onto the HRC website exactly at six months out from your check-in date to see if there is availability. Also, since you're not an owner, you stand a good chance of getting assigned to a mountain view unit.
Many of us have gotten internal trades to HKB, so it is certainly possible. That said, remember that--once the storm clouds clear from this virus--there will be huge pent-up demand for vacation travel, making landing a trade in the near term much more difficult.