Jake a couple comments, any pond less than 1 acre is going to be a difficult to manage for Bream/Bass. You must be much more careful with harvesting. Many pros will suggest just catfish. My suggesstion is to go with less than the max amount of fish. Say 250 Bream 50 bass and 25 cats and have a feeding program. Stock Bream, cats and fathead now and bass this fall.
Good luck!