Install & Configure Polylang Plugin

I already have an existing WordPress website and I am looking for a freelancer who can help install and set up Polylang properly.

Scope of work:

Install and configure Polylang
Set up language switcher
Configure URLs and language tags correctly
Check plugin and theme compatibility
Ensure language detection works properly across all main pages
Set up Malay language option for all main pages

Important:

Website is already built
I only need multilingual setup and proper configuration
Please let me know if you can also suggest a cheaper alternative if better suited

When replying, please include:

Your experience with Polylang or multilingual WordPress websites
Whether you have done similar setup before
Estimated price
Estimated completion time

Looking for someone reliable who can do this properly.