Can I domain map just one site from a multisite

I have a multi-site network. Each site is its own independent sub-site. But I’d like to aggregate some content from the sub-sites onto another site within the network, and I’d like that aggregated site to be on its own domain. Is that possible? All of the sites will be subsite1.mydomain.com but the aggregate site will be mapped to anotherdomain.com

If so, and the aggregated site contains aggregated excerpts and links to content to sub sites on the network, will all of those links work once it’s mapped to another domain.

Lastly, is WPMU’s domain mapping plugin the way to go. Will this plugin do everything I’m needing to do here.

Thanks!