Over De Gaulle's dead body.
I guess if you can remove him from the equation there's no way the Common Agricultural Policy is happening in its current form. That was always De Gaulle's big worry besides his minor anglophobia - that they would mess with his great plan to transfer money from the pockets of German factory workers into the pockets of French farmers. British farms tend to be smaller and more efficient than continental ones due to lack of space, and as such don't qualify for CAP money.
The whole point of the CAP is to
(a) prop up France's bloated agricultural sector
(b) make Europe self-sufficient in food to prevent a repeat of the blockade of WWII
No chance of that with the UK involved from the start.