Help Starting Over with Multisite

URGENT.

I can't fix my mulitsite, so am starting over with a fresh install.

How do I get my basic site (a onepager built in Fixer) out of the current multisite and into my new build. Simple content.

I have tried: Exporting as child. No customizations show up after import in new site.

It is my base site in my mulitsite directory, but does not show WPMU Dev plugin and has no ability to upload plugins.

No subsites exist right now. I just want this home page out.