I've been working on communication towers for 10 years and after watching the episode where the billboard was hung at only around 60'-70', I think you should go higher and get dirtier. We work at an average of 200' on a daily basis in the heat, dark, rain, snow, wind or shine. Be cool to see you up hanging antennas or stack a tower at 200'-300'. We don't get that much exposure and people don't understand what is involved in making their cellular phones work.