What exactly is the question? Try and narrow it down a bit. Unless one of our users happens to be an LEO who also set up an aviation wing somewhere, and wants to talk about it, I doubt you are going to get a lot of useful info. On the other hand many of us have done similar aviation ops to what you propose. Pipeline patrol, aerial survey, traffic watch, etc. The activities you mention are all over the place in terms of equipment, training, ops environment, risk, etc. I recommend you concentrate on just one of them and in the meantime get your pilot certificates at least to the commercial level (Private, Instrument, Commercial). That is going to take the better part of a year or two and it sounds like all on your own dime. If you think you are going to spend $5k and take enough lessons to get a sport pilot certificate and then expect to do all that stuff you mention, forget it. You are embarking on something that is a completely parallel career with associated costs and commitment. It could take years to get yourself in a position to actually be able to take on duties as a flying LEO. It would be faster to hire pilots and set it up, but not fly yourself.