I can't wait to see the responses to this.
I am in central Ohio and am closing on 10 acres at the end of this month. Mine is about 3 acres of "yard" with various mature trees (sycamore, maple, oak, walnut, spruce, pine, dogwood, etc...), 2 acres of woods and 5 acres of grass/dirt/future pasture that I would like to fencing in. Mine is also hilly/rolling. I also have a spot at the lowest point of the property where I *could* put a pond that would be fed by an occasional stream after it rains. The rest of the time it is just a damp spot with a trickle of water through it.
The properties sound remarkably similar. Good luck with yours. I look forward to seeing the advice here and also how it ultimately turns out.