First off, ponds must be above the 20 year flood line in MN to even get a permit to stock it. If it is not already high enough there will be a berm built.
I plan on planting lilly pads were I can. Other than that I don't know. Not adding nutrients is certaintly one way to limit the competativeness of milfoil. I am not going to fertalize this pond. My biggest fear is run away weed growth, small BG and the eventual winter kill. I am not sure how sterile it is, the bottom will be a mix of clay and sand and the water shed will be fertil, unfarmed, black dirt. The ground water may already be high in nutrients.
I do not have a supplier yet (I sent out four emails asking about prices and didn't get one reply), but we have time for that yet.
My concern about SMB is that they will have 2 bad spawns in a row and the BG will take off on them. How could I correct a small BG population, with out expensive stocking of SMB?