Sounds good...but our association does not allow us to put anything on our roof or any concrete. And since the person in charge of the association for our neighborhood lives across the street, and they check (association people) the backyards of people's homes to try and nail you with a fine. Anyways, I will probably just bury the 4x4 post (either an 8' post or a 10' post) 3 or 4' into the ground...Do you guys think this will be stable and work out okay? Thanks for all of your help.