I will be running power to detached studio that is about 50ft from my home. The studio will have 6 canned lights, 1 chandelier, 2 porch lights, and 6 receptacles. The studio will also have a 115v mini split AC that pulls 10.4 amps. My plan is to have a sub panel with two 20 amp breakers. One breaker would feed the circuit for lights and outlets and one would feed power to AC with disconnect outside. Can I use a 30 amp breaker to feed from my main panel with 10/3 wire or do I need a 40 amp breaker with 8/3?