I'm about to buy the equipment for PAP (Pole Aerial Photography), curious how most folks do it- keep a second camera, lens, battery, etc in the car every day for when the need for PAP arises? Since we don't want to put our 5DMk2 up in the air, was planning on using a Rebel with wide angle Sigma lens for the PAP work.
My experience has been until you see each property how do you know when you're going to need a pole shot? Perhaps you could use Google Street View to decide ahead of time. Some properties look like awful when shot from the level of the street when the property is elevated and require a pole shot just to look reasonable.
Being ready to take a pole exterior shot all the time is just another reason to use a camera like the Sony A5100 for a pole camera. It's small, takes up very little space but is high quality.
My approach is since I have a pickup, I carry a fold up ladder that I put up in the bed of my pickup that gets my camera about 20' above the ground. I take the ladder to every shoot and use it almost every time because an elevated shot may not be essential but elevated shots always look better than shooting at street level. With this approach, I don't have to carry a special pole camera, I just use my 5DMkII standing on the ladder.