The Soviet collective farm as a producer cooperative

Imagine that most of the obstacles facing Soviet kolkhozes (collective farms) today, such as output and delivery quotas, administrative interference, shortage of strategic inputs (materials, spare parts, fertilizer), depressed prices of outputs, etc., suddenly vanish, and the kolkhozes find themselves in a Lange-Lerner type of a competitive world where everything can be bought and sold at a market price, and where peasants are free to run their own affairs provided the essential structure of the kolkhoz is retained. How would Soviet agriculture, or for that matter any economic sector so organized, fare in such a wonderland?