Nothing ventured, nothing gained. You will never be able to stop deer or poaching completely. You can manage it to an extent, but that's about it.
I think many smaller test plots are the way to go initially. It shortens your learning curve without excessive losses caused by planting where the ginseng doesn't want to grow. Most guys plant test patches with 100 or 200 seeds or so. Some more like 2 ounces of seed (about 800-900 seeds).