Organic Valley last year established a transition fund to help small farmers go from conventional to organic dairy production. Since they’re a small farms co-operative, I believe they set a standard price per hundredweight for their members.
You should check those guys out if you’re interested in going back to farming. I believe the deal is, during the USDA mandated transition period, farmers are paid a premium of $1 per hundredweight above the going non-organic milk pay price during first nine months. For the last 3 months, they get $2 per hundredweight above non-organic pay prices, and for the first three months within their regional organic milk "pool," they receive $1 per hundredweight above the organic payment price.