The FAA won't interfere ever. All you do is file the notice to construct and they'll eventually come back and tell you what they think of your idea, but it's not binding on you. The worst thing they'll do is mark it OBJECTIONABLE and refuse to "help" you further.
We get the blackhawks at our field as well. It's nice and dark at night. Sometimes I go out and wave at them as they make their hover passes. It was actually the first day I was in the new house sitting in my office and had one shoot by at eye level that reminded me why I live on the airpark.
We were concerned about a new $2MM house that went up on an island off the end of our runway (from the opposite end it looks like his house is right a tthe end of the runway). We've invited him over a few times and he really likes planes. There's not much traffic from our field anyhow. The jetskis on the lake make more noise.