Dry farmed tomatoes are amazing. They can produce some of the tastiest fruit! It does involve deep soil prep, and I believe *triple* (not just double) digging is used. So not for everyone!
Also you might want to invest in some five gallon grow bags. I have found that smaller than five gallons is too small at least for some tomatoes, and the smaller pots are harder to keep evenly watered. I did grow some in three gallon pots this year (though just a few, nowhere near your production levels!) and found also that mulching with straw around the sides of the pot as well as on top of the soil surface was a big help.
