Have you thought about smallmouth bass instead?

Bluntnose Minnows
Golden Shiners
Lake Chubsuckers
Mississippi Grass Shrimp
Papershell Crayfish
Redear Sunfish
Smallmouth Bass

The smallmouth don't have the reproductive capacity of the largemouth and they do not require bluegill for forage, which can be a pain to manage in a small pond.