You may want to look at my last post about Fatheads and transfering egg masses. You also need to be aware of the VHS virus if you are in the vacinity of the Great Lakes. It is a invasive brought over from Europe that has found a way to mutate from saltwater to freshwater and as such poses a considerable risk of transferance. By transfering eggs in clean water you should eliminate the problem.
I would hesitate before I moved minnows from a moving water source as the Creek Chub could be one of the species you might catch. They are aggressive and will feed on anything smaller than themselves this could pose a problem to smaller fish. But they will not spawn in the absence of current so will not reproduce.
I would recommend trying the PVC pipe spawning structures for Fathead minnows and move the eggs into your ponds. It may be the safest alternative.
Gammarus Lacustris may also be a good alternative to minnows.
They also can be found in your area.
Shoreline areas with moderate to dense vegetation in ponds and lakes in your area should yield some Gammarus.
A tow net or fine mesh dip net pulled through the vegetation can produce suprising results and the inverts. can be transfered in a cooler of water. (always bring your own water in the cooler and drain all water from minnows and invertebrates away from your ponds before placing you in your pond)
I can give you maore info if you need it including net designs for ivertebrates.
Barry

What we have done for ourselves alone dies with us; What we have done for others and the world remains and is immortal.