Who quoted you ?
From my experience, Acer laptop repair are consider the cheapest.
If I were you, I will bring that laptop , go to Highpoint in Subang Glenmarie. I have good experience sending my dead Acer laptop there even after warranty ends.

If this is the case , if i were u, just give up on the laptop and get another unit. For that price , its just not worth it since u have a quad core CPU. Get something with at least 6 CPU cores these days.
I looked at the price of your CPU on Aliexpress , definitely not worth it.