Thank you for this very helpful thread Bro Fong.

I would like to ask where do I even find the prices as listed? I tried Lazada/Shopee/Manufacture website all have them listed more expensive.

Specifically these models:
2539 Acer Swift 3 SF315-41G-R6Z9 - R5-2500U, 8GB, 256GB SSD, RX540, IPS

2552+ Acer Swift 3 SF314-54G-52L8 / 59WJ - i5-8250U, 4GB (upgradable), 1TB HDD+128GB SSD, MX150 (10+W), IPS

2498+ Lenovo Ideapad 330s-14IKB 81F40191MJ / 192MJ / 193MJ - i5-8250U, 4GB, 512GB, Radeon 535, IPS

Can show me where to get them at that price?