120mm, if Barney is giving you a hard time I would see Sheriff Andy. Seriously I would go above his head and complain. Police departments have a duty to investigate all reports reguardless of how tivial they may seem at the time.
As for cash donations I would be calling everybody I could think of until that was resolved. No place for it.

On second thought just move to Alabama we have several of what we call civillian police academies for people who want to volunteer to help. It has worked out very well. Not sure about the Air Observation part that is a new angle.