Custom LibreNMS to monitor Mikrotik (custom script required)

Dear Freelancer, I need someone who can assist us in building graphs in our LibreNMS for monitoring Mikrotik. The parameter that should be 'counts' are the /ip firewall mangle bytes (stats). This will involve in 2 actions: creating a script in mikrotik (which I can help you on this) and creating a custom librenms mib (or related). Please propose what you had in mind in the chat, before I'll hand you the Mikrotik script for your references in constructing the LibreNMS part. Thank you