I am not qualified to answer that but I do have a couple of suggestions. Search for a tree farm(s) in your area. Go there and talk with the tree farmer. They are the experts on trees especially in your area. I would also drive around your area and observe trees that you like the look of. Take pic's and bring with you.

In MN, at least in my area, tree spades with conifers are becoming cost effective(IMO). If the funds are available, you can take years out of the growing process and have a finished look at your pond quickley.