I agree with Ciderhead, the revenue should be the first call you make about this sort of thing.
We would be very interesting to hear how you get on and to be honest, I wish you all the best and hope that it is doable because it would open up some interesting possibilities brewing beer as well!
That said, the only way it could possibly be legal is for personal home consumption only. Not for weddings and certainly not restaurants as a house wine option as presumably that would require a monetary transaction and that would bring the revenue swarming in on said restaurant first and then you would be their target. I would be very careful about some of the things you are promoting.
That said, for personal home consumption where you are simply providing the space to do it and storage, it "might" just about be legal but only revenue can make that call.