If you are having an impossible time getting a 100 to 150 foot tower zoned for cellular, well it's not for cellular anymore. Declare it to be a HAM tower, have the location become a sponsored HAM radio club which meets say once a month. Better yet seek out MARS(military affiliated radio station) status. A licensed amature radio operator must sign the station application. Once a station call sign is assigned you can tell the zoning board to eat static. An FAA determination is still required and maybe an FCC registration number. HAM towers are almost entirely exempt from local zoning regulations. The cellular infrastructure becomes a secondary attachment to the primary HAM VHF repeater, which must be maintained. Make sure the HAM equipment is installed first and sending out an hourly station identification before any cellular components are attached. A trick to speed up permitting for 70 feet or so high metal things is to use a heavy duty light pole with an actual light on it. It usually takes two days to permit a light pole. This may be a help in Las Vegas if they still have that 70 foot cell tower limit. I'll bet the lights iluminating the interstate interchange in Vegas are a good 80 or 85 feet. It can be crazy. Washington DC has a 555 foot height(Washington Monument) limit on anything, except the city owned 800 plus foot tower holding every TV station, radio station, and cellular carrier in the BTA.