I agree with the stocking of soft rayed minnow type species. Fathead minnows, golden shiners, bluntnose minnows, banded killifish etc... I am doing that in my pond right now. I am giving them 2 years alone. Just added 12 adult male BG because I was having an issue with predatory water insects eating a lot of my fish fry. But other than that, it's just lots of forage fish. The problem with northern ponds is the bass just don't grow fast enough. They get behind the BG and never catch up. I would strongly recommend holding off on stocking the BG. Let your newly stocked bass feed on the FHM and if you decide to stock some other soft rayed species them as well for the first year. Then add your BG.
