Mediterranean climate, is 8000sqm enough for what I want to achieve?

Hi, I live in a Mediterranean climate and I am deciding which property to buy.

Our idea is to have enough to produce for ourselves in terms of legumes, fruits, vegetables, eggs, maybe some occasional milk, olive oil, and maybe some grain between trees.

I’d like to have some extra to sell as raw products or also by cooking them to people who comes visit us that would like to try some products.

I was looking for some answers by who has experience about it.

Would that enough land to produce enough food and have that much surplus considering we are two and maybe 3 or 4 in 10 years.

Thank you!