Create Sub Domain on New Instance on Google Cloud

Hi All, We need someone who is exceptionally good when it comes to managing domains and sub domain in Google Cloud, we have 2 instance on google cloud; one is used for the main domain and the other we want to use on subdomain i.e. [login to view URL] The websites are on Wordpress. We are precisely looking for the following services: - Point the subdomain [login to view URL] to the new instance - Update the instance db url from the IP address to [login to view URL] - Install ssl certificate to the sub domain (login credentials will be provided) - Make sure the emails from the website / server is working fine This is not more than a 2-3 hours job; so please only bid if you have done a similar stuff in the past. While doing this the previous website or main website instance should strictly not be affected. Thanks for your time.