We run a small jewelry store, showroom is 20x15 or so. We need a system that is 6 cameras i would think to get all spaces, backroom, outside covered. We have less than 2000 to spend and am wondering what one would recommend for a standalone system? is this enough to spend?. It would need to be clear enough to use for evidence, so thinking it should be able to see a ring on a table very clearly for playback/record.