Engineering laptop recommendation,

Hello there,
I have read through many of the recent posts, but can't really find what I need. Most of the official sites do not offer good customization to suit my needs either. Can anyone recommend for:

1. Budget : RM8500
2. Usage : bricscad ANSYS etc
3. Requirements (display size, battery life, weight etc) :
a) Display Size 15 inch must be calibrateable DCM d65
b) bios adjustable ram
c) Battery of around 6 hours+ per charge is sufficient


Must have windows 10 64bit pro and able to install dual os windows server 2019 .

Please only suggest if you are sure . No cloud reviewer .