One other thing to think about is those tall trees you mentioned. They may affect you in several ways: The two most obvious are, can you clear them after takeoff, and will they hinder your landings?

Another is this: many times, if you are surrounded by trees (even if only on one, two, or three sides) Turbulence can occur in areas that, on the ground, you may not feel. Your pucker factor can rise dramatically when your plane almost snaps on a landing approach!