I will love to assist you with your HDB purchase.
But I hope you can understand the harsh reality of the resale HDB market.
If you want high floor, corner/ next to corner unit and move in condition, you must be willing to pay for a premium. I wont say COV budget of $20k is not enough, it could be more than enough but you might need to drop some of your requirements if your COV budget cant matches the asking.
I have a renovated unit at Compassvale Bow which is 5 mins away from Buangkok MRT Station but it is a low floor unit. I hope you can consider it.
If not, I will love to continue to help you with your property needs.
Hope to hear from you soon!
M: (+65) 9111 5171