Farms Questions Part 1

I want a farm. I want to be able to raise chickens and cows and grow enough vegetables and fruits to almost sustain us. So my question is what is the right size for a farm to be able to do that? Should it be 10 acres? 20? 30? I have no experience with this sort of thing but I know it is something I want very much. Any tips would be greatly appreciated.

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More pictures to come.

Leaving Tomorrow

I'll be leaving for vacation tomorrow. I will miss you all. Have a great week while I'm gone. Lots of pictures when I come back.