FR, What is the approx length and width of your pond, are you going to feed heavily,will you fertilize this pond?You may need different stlye diffusers for different depths but you can easily "properly" aerate this pond with 2/3 to 1 hp.Provide some additional information and Ill give you my ideas for your pond.A sketch if you dont have an aerial would help also but I can work with whatever you may have.
