Most of the fish species you mentioned (sculpins, madtoms, darters, etc.) are stream fish that require stream habitat to live and reproduce successfully. They won't last long at all in a pond situation and are difficult to obtain or raise in any significant numbers. I have dealt with many ponds built on small streams that have populations of darters and madtoms captured during pond construction and they (darters and madtoms) never last more than one year. One of the reasons we hear so much about shiners, shad, and bluegill is because they are the tried and true forage species that work in warmwater ponds.