Customizing NFT Marketplace website.

I'm going to buy a ready NFT marketplace script. I need someone who can help me with customizing and support.

DEMO DETAILS:

Front End : https://linkwellsystems.com:3005/

Back End : https://linkwellsystems.com:3006/

Username : admin @ mail.com

Password : 123456
System Requirement:

Operating system : Linux
Docker
Web3 cli
Nodejs : 12.x +
MongoDB : 4.x +
Angular : 11.x +
SSH root access for installation purpose