Rental should range between $4,000 - $5,000 based on market situation when it top. If you are looking at capital gain, the best move would be to sell when you reach your target. If you are looking at positive long term passive income, you can bank in on the rental.
Most of my investors have liquidated their units in the beginning half of this year to jump on the good buys that they predict to come out in the second half.
Hope this will give you some idea.