I have to put cameras on a piece of equipment at work. We keep getting a fault codes and the manufaacturering is claiming it is operator error. We don't believe it is. I would prefer a NVR but will accept a DVR. i would like to have at least 1080p cameras. I need two channels but would prefer three. One camera will on the roof of the cab facing forward to see the position of the controls arms. The two will be inside the cab. One will be on the ceiling facing down at the instrument panel. It is not critial that it be able to read the instruments, just for us to be able to determine which lights on the panel are on. The third will be behind the driver facing forward. The budget is 1500 dollars or less for two units I would like variable focal cameras but that is not a must. Does anybody have any ideas? It must be 12volt. It must start on power up. Storage capacity is not critical. An hour would be plenty. Thank you for your input.