I posted one above, however given the height of many of these installations, I think the common piezo+coil demo mounted on either a telescopic floodlight bulb changing pole or a payload drone modified to shield the controller board (otherwise plan to replace the boards) would be simpler safer and cheaper.

Edit: actually since it’s a drone you can just suspend the coil by a string and rely on inverse square for shielding. Much lighter. Cheaper drone or stronger pulse.