I have 3 multisite networks and would unify into one, so

I have 3 multisite networks and would unify into one, so I need to clone the sites for the new network, I've tried solutions such as backup but nothing worked, it would be ideal to clone a new network, this plugin is perfect, clone it to a new site or replace an existing one that on the same network, I am willing to pay to create this new method, where you could choose which network the clone site, current network or new network where we should be sent by the ftp settings and database to connect.