Postfix Reinstall Help

Hi, I need someone to re-install Postfix on a Linux server and retain the current configuration. Most of the config is by the Postfix standard config file. There is also a bash script to send out a summary of the top senders every 24 hours. Would be good if this too can be retained. Work to be done via AnyDesk / TeamViewer session. Looking for someone who can start immediately (within a couple of hours).