A strength that is often overlooked at NGO's is their people power, so don't forget to leverage that. For instance, cctv, each unit, each chief and his 4 indians, could simply use wyze to monitor their immediate environment, worst case scenario, the chief leaves in a bad way and someone else has to reprogram the wyze cams to a new chief. Same with passwords, if you don't want to pay for centralized admin, then create multiple self-sufficient micro-environments with one central IT as tier 2 for advise and rescue. Think of it as vlans, but in admin terms. This method, opens up a lot of free tiers out there for each tribe/unit to leverage, as long as IT/CENTRAL, get's informed of the master-pwd (ex. bitwarden etc.).