Trying to plan a project where I will take a Hoffman enclosure that will house two motor starters that control 1 50hp motor, and 1 20 horsepower motor that goto a mixer. The feeder will come from a 600a 480V MDP. Without getting to deep into distances, what is the best way to start figuring my cb size? I would like to also have a cb in the hoffman enlosure with a rotary handle on the outside. So do I size enclosure CB the way the code says for multiple motor loads? Should I oversize my MDP CB? Just trying to figure out the best coordination.