You need a 27 in monitor to display $2,560 X 1440. I saw Amazon's average price is about 400 USD. Samsung is more expensive at a bit over 600 USD (my favorite). It is doable at 5,000 or a bit lower , HKD.
It is different ratio and lower resolution. Some might not be used to it..
The Asus PB 278Q (27 inch, pro quality) will support that..(No audio build-in) under 5k HKD. Asus monitor not my up of tea. I like Samsung and Viewsonic. They cost about 30% more, pro quality..