The Conservative Co-operative Movement have made the booklet "Nuts & Bolts : How to Start a Food Co-operative" available online. You can download the 90+ pages here. You are supposed to sign up to the free email newsletter, which I have done, as I want to kept up to date. I've read some of it already and it looks like a practical guide.
The only thing that is still puzzling me is the Conservative Co-op Movement is at an arms length distance from the Conservative Party. If you visit the Conservative Party website you'd never know that David Cameron and the new look Tories were now pro-Co-operative. Well we'll see in the coming months.