Removal for Realme C75 RMX3941 Custom ROM & Region Lock

I'm in need of a solution for my Realme C75, RMX3941. The device is region-locked and I need to both remove this restriction and install a custom ROM.

Requirements:
- Install a custom ROM on my Realme C75
- Remove the region lock through a software-based solution
- Ensure the device operates flawlessly post-installation

Please note that the bootloader of the device is unlocked, so you will have full access for the installation and modifications.

Ideal Skills and Experience:
- Proven expertise in working with Realme devices
- Proficiency in custom ROM installations
- Experience in software-based region lock removals
- Ability to ensure device operates without issues post-service

I look forward to your proposals and any questions you may have.