CJ provides a couple viable options for stockings; one an ideal plan and one an easier alternative. Both can likely work okay.
The alternative forage fish are on the pricey side. If you are adventureous collect a few of these fish from local streams. To do this it will take quite a bit of homework.
I would add: to monitor your minnow populations and small fingerling fish use minnow traps baited with bread. fish food or maybe dog or cat food. Seining the shallow beach area in mid late summer can also provide an good idea of presence of numbers of small fish. When minnows are rare in the trapping / samplings your predators are likely too abundant.
Keep us advised as to how this all works out for you.
