Pull Single Site Out of Multisite Install

I got bit today. Turns out WooCommerce doesn't support https with multisite. I have two sites I have to pull out of multisite and place as a standalone.

What's the best way to do this? I heard "backup buddy" but their information says they are experimental with multisite.

I wish I could just make the whole site https, but that doesn't seem to be an option as well.

Your professional advice is greatly appreciated.