At least 3 months to complete the transaction. It's freehold and under MPS + Daerah Gombak. so, i think should be quite fast as there won't be much restriction. You bought End Lot or Corner Lot? There is difference between both.

End Lot = Unit that is side to a Small Lane which usually don't have any land. It only has extra windows.
Corner Lot = First or Last unit of the House at each road. It usually has extra land at the side. It could be 40x70 or 35x70 depending on the unit location.

If you bought corner lot, 650K is fair price. But if end lot, 650K is way too expensive.