Backup a single site from a Multisite

I’ve run into a problem when backing up a single site within my multi site and then “migrating” it to another site within the same multi site network, where the original site is getting overwritten by the latter instead of the intended other way around. If this voted-on feature addresses situations like this, it would be great! I run a multi site where I host featured musicians who record at my studio. When each gets their landing page, I have to go through and setup all the pages, templates, licenses, etc. It takes me almost 2 hours for each site I have to setup. If I were to be able to backup and then “restore” a site that’s ready to modify slightly, even if I only have to handle licenses, it would be a game changer for me!!! Talk about reclaiming those lost hours setting up!