Has anyone successfully integrated Campaign with Ad-cloud as a journey?

Hey,

I'm really wanting to integrate our performance marketing (paid social mostly) with our campaign activity (email, sms customer journey.) 

Ideally, I'd want to be able to have an activity that starts with social advertising and then creates a workflow of emails etc and then during the campaign trigger more social advertising to that audience based on certain triggers (e.g. gone away.)

I know we can manage this separately but a common automated workflow would be amazing. 

thanks!