If you are set on a Largemouth/Bluegill pond, stock Bluegills at the rate of 15-30 for every Largemouth you put in the pond. This is for fingerling fish. Figure 75-100 LMB per acre so adjust your LMB/BG numbers accordingly.
If it was my pond, and I could feed the fish, (and could stock the following species) I'd look into Hybrid Striped Bass, Hybrid Bluegills and Redear Sunfish.
