Michael Wignall and Tim Hunt (Ethical Consumer editor) have just started a new business to do exactly this and would be up for a chat and offer their services.
Michael handles the data side (digital marketing, analytics, SEO etc) and Tim is bringing his experience of running Ethical Consumer’s magazine and online content together to offer both sides of the content process. And they also knows lots about coops so a good fit on that side of things.
I think I suggested Michael when you asked about digital marketing a while back, not sure if you ever spoke or not. Either way his email is michael[at]orangetreedigital.co.uk.